Resume structure · original research
Resume sections: what to include, what to call them, and what order to put them in
A resume needs five sections: a header with your contact details, a summary, skills, experience and education, in roughly that order, under headings a parser can name. Certifications and projects are the two optional sections worth adding. We checked that advice against 218 real resumes people submitted to the ResumeAtlas checker: about one in four had no Experience, Skills or Education heading a parser could map, 79.5% led with a summary, and the headings that caused the most trouble were not creative ones but ordinary words like “Contact” and “Declaration” that no parser has a field for.
Last updated: September 20, 2026
Quick answer
- Which sections: header, summary, skills, experience, education. Optional: certifications, projects, then languages, volunteering, publications, awards.
- What order: header → summary → skills → experience → education → optional sections. Students and recent graduates move education above experience.
- What to call them: the plainest word. “Experience”, “Skills”, “Education”, “Summary”, “Certifications”, “Projects”. “Professional Experience” and “Technical Skills” are equally safe.
- How many: four to six. The median real resume had 4.
- What breaks: a heading a parser cannot map (“My Journey”, “Toolbox”), a heading with letter-spacing, a heading inside a sidebar or table.
What we found in 218 real resumes
Every resume submitted to the ResumeAtlas ATS checker between June 2026 – September 2026 with usable text, de-duplicated to 218 distinct documents, run through the checker’s heading pass. The pass reads each short standalone line, compares it to a list of standard section wordings, and records the first match per section — the same thing a parser does before it can put your jobs into a work-history field. A resume counts as having a section only when its heading matched.
Which sections real resumes have (under a heading a parser maps)
| Section | Resumes with a mapped heading | Most common wording |
|---|---|---|
| Summary | 76.1% | “Professional Summary” (44%), “Summary” (38.6%), “Profile” (4.8%) |
| Skills | 77.1% | “Skills” (54.8%), “Technical Skills” (16.7%), “Core Competencies” (10.1%) |
| Experience | 79.8% | “Experience” (40.8%), “Professional Experience” (30.5%), “Work Experience” (20.1%) |
| Education | 79.8% | “Education” (100%) |
| Certifications | 57.3% | “Certifications” (57.6%), “Certificates” (4%), “Licenses & Certifications” (0.8%); other wording 37.6% |
| Projects | 33.9% | “Projects” (68.9%), “Key Projects” (2.7%), “Academic Projects” (1.4%); other wording 25.7% |
n = 218. “Other wording” is a heading the pass matched by a keyword (a line containing “certificate” or “project”) rather than by a standard phrase; it is not published word for word. 16.5% of the 218 resumes did not parse into a usable record at all, and they count as having no sections here.
Read the top three rows as a warning rather than a census. Roughly one resume in four (20% for Experience, 23% for Skills, 20% for Education) had no heading the parser could map for a section that almost every resume has. Some of those resumes genuinely lack the section (a student with no jobs yet), some lost the heading in extraction (a sidebar, a table, letter-spacing), and some used a wording that is not on any standard list. The next two tables separate those cases.
What people call each section
Among resumes where the section was recognised, the wording that matched. The spread is narrow: the top three phrasings cover more than nine in ten Experience headings, and “Education” is the only word anyone uses for education.
Experience
- Experience40.8%
- Professional Experience30.5%
- Work Experience20.1%
- Work History2.3%
- Internships1.7%
- Internship Experience1.1%
Skills
- Skills54.8%
- Technical Skills16.7%
- Core Competencies10.1%
- Core Skills8.3%
- Key Skills5.4%
- Technical Expertise1.8%
Summary
- Professional Summary44%
- Summary38.6%
- Profile4.8%
- Objective4.2%
- Professional Profile3%
- Career Summary2.4%
Certifications
- Certifications57.6%
- Certificates4%
- Licenses & Certifications0.8%
- Other wording37.6%
What order real resumes use
- First section after the header: Summary 79.5%, Experience 9%, Skills 7.5%, Education 2%, Projects 1%, Certifications 1% (n = 200 resumes with two or more recognised sections).
- Summary above Experience: 98.6% of the 147 resumes that have both.
- Skills above Experience: 65.8% of 149. The skills-first layout is the majority, not the exception.
- Education above Experience: 15.3% of 150 — the student and recent-graduate pattern.
The headings a parser has no field for
Short standalone lines made only of ordinary heading words that matched no standard section, seen in at least 3 different resumes. These are not exotic: they are the sections people add on top of the standard five, and a parser simply files their content nowhere in particular.
| Heading | Resumes | What a parser does with it |
|---|---|---|
| Contact | 12 (5.5%) | Nothing — contact details are read from the top of the page by pattern, not by heading. The heading itself is harmless; contact lines inside a sidebar or header band are the risk. |
| Additional Information | 10 (4.6%) | Read as loose text. Move anything that matters (a certification, a project) under its own standard heading. |
| Declaration | 10 (4.6%) | Nothing. A signed declaration is a regional convention; it occupies space and maps to no field. |
| Key Achievements | 7 (3.2%) | Ignored as a section; the lines under it are read as loose text, so any metric in them is not attached to a job. Put achievements inside the role they happened in. |
| Personal Details | 6 (2.8%) | Nothing — contact details are read from the top of the page by pattern, not by heading. The heading itself is harmless; contact lines inside a sidebar or header band are the risk. |
| Language | 5 (2.3%) | Read as loose text. Fine to keep; it is never the reason a resume fails. |
| Accomplishments | 3 (1.4%) | Ignored as a section; the lines under it are read as loose text, so any metric in them is not attached to a job. Put achievements inside the role they happened in. |
| Achievement | 3 (1.4%) | Ignored as a section; the lines under it are read as loose text, so any metric in them is not attached to a job. Put achievements inside the role they happened in. |
| Extracurricular Activities | 3 (1.4%) | Read as loose text. Relevant leadership or projects belong under Projects or Experience instead. |
| Additional | 3 (1.4%) | Read as loose text. Move anything that matters (a certification, a project) under its own standard heading. |
| Accomplishment | 3 (1.4%) | Ignored as a section; the lines under it are read as loose text, so any metric in them is not attached to a job. Put achievements inside the role they happened in. |
| Strengths | 3 (1.4%) | Reads like Skills but did not match the standard list — the section it introduces is at risk of not being recognised. Rename it to the plain word. |
14.2% of the 218 resumes carried an unrecognised heading that reads like a core section (skills, experience, education or summary) while that section was also missing — the case where the wording, not the content, cost the section. The analyzer’s synonym list was extended after this scan with the wordings it flagged in three or more resumes (“career objective”, “internships”, “technical expertise”, “professional skills”); the figures on this page are from the current list.
What sections should a resume have?
Five, and they are the same five on nearly every resume that works: a header with your contact details, a summary, a skills list, your experience, and your education. Two optional sections earn their place often enough to treat as standard when you have the content — certifications and projects. The table gives the section, the headings that are safe to use for it, and what goes under it.
| Section | Safe headings | Required? | What goes in it |
|---|---|---|---|
| Header (contact information) | No heading — your name is the heading | Required | Name, phone, email, city, LinkedIn or portfolio URL. Plain text in the body of the page, not in the document header band. |
| Summary | Summary · Professional Summary | Optional (most resumes have one) | Three to four sentences: what you do, the level you do it at, the one or two things that make you the right hire. |
| Skills | Skills · Technical Skills · Core Competencies | Required | The tools, languages, platforms and methods a posting names, as a short list. Keep it to what you can defend in an interview. |
| Experience | Experience · Professional Experience · Work Experience | Required | Each role: title, employer, dates, then bullets that state what you did and what changed because of it. |
| Education | Education | Required | Degree, school, graduation year. Coursework and GPA only when you are early in your career. |
| Certifications | Certifications · Licenses & Certifications | Optional | Name of the credential, issuing body, year. Only credentials the field recognises. |
| Projects | Projects · Personal Projects · Academic Projects | Optional | Two or three, each with what you built, the stack, and the result. Most useful when your experience is thin or in another field. |
Two of these sections have their own guides: how to write the summary (with the measured length of real ones) and what to put in the skills section. For the experience section, the thing that separates a strong resume from an average one is not the heading but whether the bullets carry a number — most do not.
How many sections should a resume have?
Four to six. The median resume we measured had 4 sections a parser could name, and the resumes with fewer than three were almost always ones where a section existed but sat under a heading nobody recognises. Above seven, you are usually splitting one section into several (“Technical Skills”, “Soft Skills”, “Tools”, “Languages”) and each small box is read as loose text.
Which resume sections are optional?
Summary, certifications, projects, languages, volunteering, publications, awards, interests. Add one when it answers something the posting asks for and drop it when it does not. The one exception is candidates with no work experience yet: projects and internships are not optional for you — they are your experience section, and they deserve a standard heading (“Projects”, “Internship Experience”) rather than being tucked under education.
What order should resume sections be in?
Header, summary, skills, experience, education, then optional sections. That is the order the data says most people already use (79.5% lead with a summary; 65.8% put skills above experience) and it is the order a reader expects: who you are, what you can do, where you did it, what you studied.
- Skills above or below experience? Above, in one short block, when the posting is tool-driven (most technical roles) so the match is visible in the first screen. Below when your titles carry more weight than your tool list (management, senior leadership).
- Education above experience? Only while it is your strongest, most recent credential — students, new graduates, and anyone whose degree is the qualification the job actually requires. 15.3% of the resumes we measured did this.
- Where do certifications go? Directly under education when there are one or two; as their own section above education when the credential is the thing the posting requires (cloud, security, project management, clinical roles).
- Does the order matter to an ATS? Not for parsing — a parser finds sections by heading, not by position. It matters to the person reading the parsed record or the PDF, who reads top-down and stops early.
Order is one of the three things that distinguish the chronological, functional and combination formats; for almost everyone the reverse-chronological experience section, in the order above, is the right call.
What should you call each section? (resume headings)
The plainest word. A parser matches your heading against a short list of standard phrasings and files everything under it into that field; a heading that is not on the list leaves the content as loose text. The list below is the wording that both readers and parsers recognise without effort.
| Section | Use | Avoid |
|---|---|---|
| Summary | Summary, Professional Summary, Profile, Objective (early career) | About Me, Who I Am, My Story, a headline sentence used as the heading |
| Skills | Skills, Technical Skills, Core Competencies, Key Skills | Toolbox, Tech Stack (as the only skills heading), Strengths, Superpowers, What I Bring |
| Experience | Experience, Professional Experience, Work Experience, Employment History | My Journey, Career Path, Where I’ve Worked, Highlights, Achievements (as the experience heading) |
| Education | Education, Academic Background | Learning, Studies, Qualifications (ambiguous with certifications) |
| Certifications | Certifications, Licenses & Certifications | Credentials, Badges, Training (on its own) |
| Projects | Projects, Personal Projects, Academic Projects | Portfolio, Things I Built, Case Studies |
Two formatting rules matter more than the wording. First, a heading must be a line of its own, in the body of the page: a heading inside a sidebar, a table cell or a text box can leave the file in a different place from its content. Second, no letter-spacing: a template that tracks headings out to “E X P E R I E N C E” writes exactly those spaced letters into the file, and in our test that alone broke heading detection in most extractors. Bold, capitals, a rule underneath, a colour — all fine.
If you want to see which of your headings a parser actually maps, the ResumeAtlas ATS checker reports “Sections found” for your own file — the same measurement as the table above, free and without signup.
The header: contact information
The header is the block at the top with your name, phone, email, city and one link (LinkedIn or a portfolio). It does not need a heading — your name is the heading, one or two sizes larger than anything else. Do not label it “Contact” or “Personal Details”; a parser finds these fields by pattern, so the label adds nothing (it was the single most common unmapped heading in our sample). What does matter is placement: in the 218 resumes we measured, the name was missed on 7.8% and the email on 5%, almost always because the contact block sat in the document header band or a sidebar rather than in the body of the page. Leave out your full street address, date of birth, photo and marital status unless the country you are applying in expects them.
Resume sections with no work experience
Same five, one substitution: education moves to the top, and projects or internships stand in for the experience section — under their own standard heading, formatted exactly like jobs (title, organisation, dates, bullets with a result). Add relevant coursework under education and a short skills list above it. Skip the summary if it would only restate that you are a student; write one if you have a specific target role. Resist the urge to invent sections (“Leadership”, “Extracurricular Activities”) to fill the page — that content reads better as bullets under a project or role.
How this was measured
- Sample. 322 resumes submitted to the ResumeAtlas checker with usable text, June 2026 – September 2026, de-duplicated to 218 distinct documents. Same corpus as the ATS parsing benchmark.
- Method. The checker’s heading pass: each line of 48 characters or fewer that does not end in a full stop is normalised and compared to the standard-wording list for each section; the first match per section is recorded with the wording that matched and its position. Order figures use those positions. Unrecognised headings are lines of one to four words made entirely of ordinary heading vocabulary that matched no section; a wording is published only when it appears in at least 3 distinct resumes.
- Privacy. Aggregates only. Wording is reported from a fixed synonym list or the vocabulary filter; no resume text, name, employer or title is stored in the published data.
What this does not show
- Whether a section was genuinely absent or lost in extraction. The text is post-extraction, so a heading inside a sidebar that the extractor dropped counts the same as a heading that was never written. The parsing benchmark has the column and table rates.
- Any commercial ATS. This is the ResumeAtlas analyzer, which models the shared heading-matching stage; vendor lists differ at the margins.
- Hiring outcomes. Nothing here records whether a resume led to an interview.
- The sample skews toward software, data and engineering roles and covers signed-in users only.
Data generated 2026-09-20. The writer script is in the ResumeAtlas repository. Free to cite with attribution.
FAQ
What are the sections of a resume?
Five standard sections: a header with your contact details, a summary, a skills list, your work experience, and your education. Certifications and projects are the two optional sections that appear most often. Everything else (languages, volunteering, publications, awards, interests) is added only when it strengthens the case for a specific job.
How many sections should a resume have?
Four to six. Across the 218 real resumes we measured, the median resume had 4 sections a parser could name. Fewer than four usually means something essential is missing or is under a heading nobody recognises; more than seven usually means the same content has been split into too many small boxes.
Which resume sections are optional?
Summary, certifications, projects, languages, volunteering, publications, awards and interests are all optional. The four that are not: contact information, skills, experience and education. If you have no work experience yet, projects and internships stand in for it and are worth a heading of their own.
What order should resume sections be in?
Header, summary, skills, experience, education, then any optional sections. That is the order most people already use: 79.5% of the resumes we measured led with a summary and 65.8% placed skills above experience. Put education above experience only when it is more recent and more relevant than your work, which in practice means students and recent graduates.
What should be the first section of a resume?
After your name and contact details, the summary. 79.5% of the resumes we measured start that way. The only common alternative is going straight into experience, which suits senior candidates whose most recent title already says what the summary would.
Does a resume need a skills section?
Yes. It is the section a parser reads for the tools and platforms a posting names, and it is where a recruiter checks the same list in a few seconds. 77.1% of the resumes we measured had one under a recognisable heading. The mistake is not leaving it out; it is listing skills there that never appear in an experience bullet, which is what a job-match check flags as “mentioned, not proven”.
Do resumes need a summary section?
Not strictly, but 76.1% of the resumes we measured have one and it is the first thing a person reads. Three to four sentences is enough. If yours is a paragraph of adjectives, cut it; if it names your level, your specialism and one result, keep it.
Should resume headings be centered or bold?
Either is fine for a parser as long as the heading is a line of real text on its own. What breaks heading detection is not alignment or weight but letter-spacing (“E X P E R I E N C E”), headings inside a table cell or sidebar, and headings drawn as images. Left-aligned, bold, one size up from the body text is the version that never causes a problem.
Related: the longer answer on whether you need a summary, the experience section format, and a template that already uses these sections and headings.
Which of your headings does a parser actually map?
Upload your resume and the checker lists the sections it found and the ones it could not, free, no signup. If a heading or the layout is the problem, the converter rebuilds the same content under standard headings in a single column.