The primary, authoritative source for the publication is the official International Society of Automation website. ISA members frequently receive substantial discounts on both print and digital PDF versions.
is the definitive reference manual for control systems engineering, industrial automation, and operational technology (OT). Edited by industry pioneers Nicholas P. Sands and Ian Verhappen, this 688-page text acts as the foundational curriculum for prestigious technical certifications worldwide. For those seeking an official digital copy, the verified eTextbook can be purchased and accessed securely through the Wiley Product Page or the official International Society of Automation (ISA) Book Store . Core Technical Pillars covered in the Guide
Candidates for the exam do not need to buy the ABOK separately. The CAP study kit includes the Third Edition PDF as a bundled resource. If you are using a study guide, ensure the ISBN matches the Third Edition. The primary, authoritative source for the publication is
Bootleg copies are frequently poorly scanned or missing critical pages, tables, and formulas essential for exam preparation.
The third edition bridges the traditional gap between operational technology on the factory floor and information technology in the corporate office. Edited by industry pioneers Nicholas P
There is also a newer Fourth Edition (expected publication October 2026), which is the only officially authorized book covering the ISA's body of knowledge core competencies. However, the third edition remains widely used and referenced. If you are considering purchasing, note that the third edition is currently available and has been thoroughly vetted by professionals since its 2018 release, while the fourth edition is forthcoming.
: It is the "bible" for the ISA CAP Exam and CCST certifications. Core Technical Pillars covered in the Guide Candidates
Many universities and engineering firms subscribe to digital databases (such as IEEE Xplore or specific technical libraries) that grant institutional PDF access to major engineering reference books.
A Guide to the Automation Body of Knowledge (ABoK), Third Edition
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