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The Standard
The Standard for Technical Practitioners (TPBOK™)
Ten principles, 56 task statements and a guide chapter for each of the five domains. A public review draft.
Download PDFAbout the StandardTHE VENDOR-NEUTRAL STANDARD FOR TECHNICAL PRACTITIONERS
The IICTP Library · 11 free books
Free books for technical practitioners.
Study the Standard for Technical Practitioners one piece at a time: a guide for each domain, practice questions, a glossary, a casebook of worked scenarios and the code of ethics. Every book is a free PDF.
Start here
The Standard, and the credentials.
The two books everything else comes from.
Credentials
The IICTP Credentials Book
All ten credentials with their badges and sample certificates: who each is for, how it is earned and what the exam covers.
Download PDFAbout the bookTPBOK Domain Guides
One guide for each domain.
Each guide holds a domain’s task statements, its full chapter with a worked scenario and questions, the ten principles and a glossary. Pick the area you work in.
TPBOK Domain Guide 1 of 5
Domain Guide 1: Architecture & Systems Design
Service and module design, APIs, events, caching, consistency, failure isolation, scaling and legacy migration.
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TPBOK Domain Guide 2 of 5
Domain Guide 2: Engineering Governance & Agile Delivery
Git and pull requests, Scrum and Kanban, flow, DORA metrics, release trains, decision records, technical debt and tailoring delivery.
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TPBOK Domain Guide 3 of 5
Domain Guide 3: Applied AI & Emerging Tech Integration
How LLMs behave, verifying AI output, retrieval, evaluation, AI security, production use, governance and the machine learning life cycle.
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TPBOK Domain Guide 4 of 5
Domain Guide 4: Infrastructure & Security
CI/CD, secrets, vulnerabilities, supply chain, zero trust, threat modelling, observability, orchestration, infrastructure as code and incident response.
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TPBOK Domain Guide 5 of 5
Domain Guide 5: People Leadership in Engineering
Writing, collaboration, code review, ethics, leading and mentoring, careers, psychological safety, team design and stakeholders.
Download PDFPractice, reference and conduct
Learn it, test it, look it up.
Questions to try, cases to work through, every term defined, and the code holders are asked to keep.
Practice
Illustrative Questions
27 scenario questions for the ATP and CTP levels, with the answer and the reasoning for each wrong option. Written for the TPBOK; not from the exam bank.
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Reference
Glossary of Technical Practice
61 terms from the TPBOK, from bounded contexts to zero trust, defined in plain language and tied to their domain.
Download PDF
Practice
Casebook
11 worked scenarios: 6 leadership cases and 5 short practitioner cases, each with the reasoning and what a weaker answer looks like.
Download PDF
Conduct
Code of Ethics and Professional Conduct
The seven canons proposed for every credential holder, the annual attestation, how a concern is raised and handled, and how the TPBOK supports each canon.
Download PDFCertification handbooks
Taking an exam?
The handbooks cover eligibility, booking, scoring, fees and renewal. Exam blueprints for all ten credentials are on the exam facts page.
Good to know
Drafts, and what IICTP is.
These books are drafts, as of 22 October 2026. The Standard is in public review, and the books will change as it does. IICTP is a new independent credentialing body and is not ISO/IEC 17024 accredited. It does not promise employment, salary or employer recognition.
Questions
About the library.
Short answers.
Are the books free?
Yes. Every book in the library is a free PDF.
Which book should I start with?
Start with the Standard itself, or with the Domain Guide for the area you work in. If you are preparing for the ATP® or CTP®, read the guide for each domain and then try the Illustrative Questions and the Casebook.
Are the Illustrative Questions the exam questions?
No. They were written for the TPBOK and are not taken from the exam bank. Doing well on them does not predict a result in the real examination.
Is the Code of Ethics final?
No. The seven canons are published as proposals and are open for comment. The booklet follows the website, and where they differ the website is authoritative.
Why do the books say “draft”?
The Standard is in public review. The Domain Guides, questions, glossary and casebook are cut from version 0.2 of it, so they will change as it does. Comments are welcome at standards@iictp.org.