One book. Three HRCI exams.
The whole HRCI blueprint drawn out: every topic tier-marked for the aPHR, PHR, and SPHR, the law in pictures, the math worked to the answer. Included in every HRCI bundle.

A4 pages
chapters across three credentials
diagram plates
worked examples
tier markers aPHR to SPHR
One body of knowledge. Three exams.
There is one HR body of knowledge and three exams that test it at rising depth. The aPHR proves you know the field, the PHR proves you can do it, and the SPHR proves you can lead it.
Tier-marked, not triplicated
251 aPHR, PHR, and SPHR markers run through every chapter and tell you exactly which parts your exam tests, so you study one book at your depth: Learn it for the aPHR, Do it for the PHR, Lead it for the SPHR.
The law, turned into pictures
Protected classes, the four-fifths screen, and the magic thresholds: 15 employees for Title VII, 20 for the ADEA, 50 employees within 75 miles for FMLA, 1.5x for overtime. Each drawn as a page you can read in seconds.
The math, worked to the answer
119 worked examples run the numbers on the page: compa-ratio, range penetration, and the four-fifths screen, each carried through real figures to the answer instead of being left as an exercise.
Not a textbook.
A book.
Most HRCI prep is a binder of statutes you abandon by week two. This one is drawn, color-coded, tier-marked, and paced like a book you actually finish.
- 286 diagram plates. Every framework drawn once, Maslow to the nine-box.
- 479 exam-radar callouts. Lock this in, Watch out, and Tip walk beside you.
- 119 worked examples. The math run through real numbers, never left as an exercise.
- 115 mnemonics. One hook per hard list, placed where you need it.

Leading the HR Function · Diagram page
Maslow, drawn as a full page rather than a footnote.

Employment Law I · Worked example
The four-fifths adverse-impact screen, worked to the answer.

Total Rewards I · Worked example
Compa-ratio math, run through real numbers on the page.

Labor Relations · Diagram page
TIPS and FOE: the union-campaign rules on one page.
What’s inside.
Three real pages · lifted straight from the bookSwipe · 3 sample pages
461 pages in total · three shown here
Read Chapter 1, free
The book’s opening chapter, yours to keep. What HR actually is, how the three credentials fit together, and which of the aPHR, PHR, and SPHR you should sit. Pick your exam before you pick a bundle.
- Free PDF
- No credit card
- Instant access
- 01Foundations
The HR Professional & the Three Credentials
What HR actually is, how it grew up, and which of the aPHR, PHR, and SPHR you should sit — the chapter that helps you pick your exam.
Sixteen chapters, three credentials
Strategy & Leadership
Chapters 01–03What HR is and which exam you are sitting, then the strategic core: reading the business, building HR strategy that serves it, and leading the function.
- 01
The HR Professional & the Three Credentials
What HR is, and which of the three exams you are sitting for
- 02
Business Management & HR Strategy
Reading the business, then building HR strategy that serves it
- 03
Leading the HR Function
Leadership, motivation, change, and influence without authority
The Employee Lifecycle
Chapters 04–10The heart of the body of knowledge: planning the workforce, hiring it, developing it, paying it, and keeping it engaged, in the order the work actually happens.
- 04
Workforce Planning
The right people, in the right roles, at the right time and cost
- 05
Talent Acquisition
Sourcing through the offer and onboarding
- 06
Learning & Development
From performance gap to capability
- 07
Performance & Talent Management
The systems that measure, develop, and keep your people
- 08
Total Rewards I: Compensation
Job evaluation, market pricing, and the law that bounds pay
- 09
Total Rewards II: Benefits
Mandated benefits and the ones the employer designs
- 10
Employee Engagement & Relations
Engagement, voice, fair discipline, and investigations
Law, Labor & Risk
Chapters 11–14The chapters where HRCI exams are won and lost: labor relations, the EEO statutes, wage and hour law, and the risk framework that protects people and data.
- 11
Labor Relations
From the statutes to the bargaining table
- 12
Employment Law I: Equal Opportunity
The EEO statutes, theories, and landmark cases
- 13
Employment Law II: Wage, Hour & Leave
FLSA, FMLA, WARN, and classification
- 14
Risk Management, Safety & Security
OSHA, safety, and data privacy
Data, Ethics & Readiness
Chapters 15–16The close: the HRIS and the analytics that turn data into decisions, then the HRCI Code of Ethics and the exam strategy that earns the pass.
- 15
HR Information Management & Analytics
The HRIS and the analytics that turn data into decisions
- 16
Ethics, Professionalism & Exam Readiness
The HRCI Code of Ethics and the exam strategy that earns the pass
Mapped to the union of the three HRCI Exam Content Outlines, with 251 tier markers telling you which parts your credential tests.
Included in every HRCI bundle
HRCI Essentials is not sold on its own. It ships inside every aPHR, PHR, and SPHR Complete Pass System plan, next to the adaptive QBank that drills what the book teaches.
A $75 value on its own, included in full in every plan.
- aPHR Complete Pass System

Sitting the aPHR?
- HRCI Essentials, the full 461-page book (PDF)
- 1,198 adaptive practice questions
- 3 timed 100-question mock exams
- 528 rapid-recall flashcards
$469+ valueSee bundle plansfrom $69.99
- PHR Complete Pass System

Sitting the PHR?
- HRCI Essentials, the full 461-page book (PDF)
- 1,700+ adaptive practice questions
- PHR Explained video course, 26 lessons
- 600+ rapid-recall flashcards
$616+ valueSee bundle plansfrom $89.99
- SPHR Complete Pass System

Sitting the SPHR?
- HRCI Essentials, the full 461-page book (PDF)
- 1,500+ strategic practice questions
- 3 timed 140-question mock exams
- 500+ rapid-recall flashcards
$616+ valueSee bundle plansfrom $89.99
Built for every rung of the ladder
One volume, three credentials. Wherever you stand on the HRCI ladder, the book meets you there.
The aPHR starter
No HR experience required, and the exam expects none. The Foundational tier walks you through the field from the first page, and chapter 1 tells you exactly what the aPHR asks.
The PHR candidate
The working professional’s rung. The Do it tier keeps you at Professional depth across the whole lifecycle, from workforce planning to the bargaining table.
The SPHR leader
Strategy and judgment at the top rung. The Lead it tier marks the Strategic layer the SPHR tests: reading the business, leading change, and owning risk.
The career switcher
Coming to HR from another field? One volume teaches the whole body of knowledge in order, and the credential ladder in chapter 1 shows you where to step on.
The visual learner
286 diagram plates in one consistent hand and 200 fact panels. Maslow, the nine-box, the four-fifths screen, drawn once and kept.
The team certifying together
One book covers every rung, so an HR department can study from one consistent source whether each member sits the aPHR, the PHR, or the SPHR.
Frequently asked questions
Everything you need to know about HRCI Essentials.
About the Book
All three. HRCI Essentials covers the aPHR, PHR, and SPHR in one volume, with 251 tier markers telling you which parts your credential tests. Chapter 1 compares the exams so you can choose: the aPHR has 65 scored items in 1 hour 45 minutes and requires no HR experience, the PHR has 90 scored items in 2 hours, and the SPHR has 115 scored items in 2 hours 30 minutes. All three pass at a scaled 500 on a 100-to-700 scale.
HRCI Essentials is not sold separately. It ships inside every aPHR, PHR, and SPHR Complete Pass System plan alongside the adaptive QBank, the timed mocks, and the flashcards. Choose the bundle for your exam and the full book is included.
It is drawn, not transcribed: 286 diagram plates carry the frameworks, 119 worked examples run the math through real numbers to the answer, and 251 tier markers tell you which parts the aPHR, PHR, and SPHR each test, so one book serves all three credentials without triplicating a page.
A print-ready digital PDF: A4, 461 pages, designed at 300 DPI. Print the chapters you are working on, annotate on a tablet, or read on any screen.
No. The book is the teaching half of the system: 461 pages that explain, draw, and work the content. The practice lives right next to it in your bundle, in the adaptive QBank, the timed mock exams, and the flashcards that ship in every Complete Pass System plan.
Yes. It is built on the current HRCI Exam Content Outlines: the 2021 aPHR outline and the 2024 PHR and SPHR outlines. Exam content, eligibility, and scoring are set by HRCI, so always confirm the latest requirements at hrci.org.
About PrepSolution
You’ll receive an email with your login credentials and the book download within 5 minutes of purchasing any aPHR, PHR, or SPHR Complete Pass System plan. If you don’t see it, check your spam folder or contact support@prepsolution.com.
No. The Complete Pass System is a one-time payment for the access length you choose, and the book PDF is yours to keep. There are no recurring charges, no auto-renewals, and no hidden fees.
No. PrepSolution is an independent exam preparation company. We are not affiliated with, endorsed by, or sponsored by HRCI. Our content is developed from HRCI’s publicly available exam content outlines.
Many employers cover professional development costs including exam prep materials. After purchase, you’ll receive a receipt that can be submitted for reimbursement. Contact support@prepsolution.com if you need a customized invoice.
Walk in knowing your rung.
One book, three credentials, tier-marked so you study at your depth, inside every HRCI Complete Pass System plan.
start here
PHR, SPHR, and aPHR are registered trademarks of the HR Certification Institute (HRCI). This independent study resource is not endorsed by or affiliated with HRCI. Exam fees, eligibility, content, and scoring are set by HRCI and can change. Always verify current requirements at hrci.org.


