The TOGAF 10 Standard is, as I covered in my review of the standard itself, genuinely improved from previous editions. It is also still 700+ pages of formal specification language written for an audience of standards authors first and practitioners second. If you are preparing for the OGEA-101 or OGEA-102 exams, or you are inheriting a TOGAF-shaped practice and you want to skip the bits no one actually uses, you want a companion book. Mastering TOGAF 10 by Roshan Gavandi is the companion that, in my experience, comes closest to being the right one.
What this book actually is
It is a study and practice companion. It is not a substitute for the standard, and Gavandi does not pretend it is. The book’s structure follows the OGEA exam objectives reasonably closely, walks through the ADM phase by phase with worked examples that are more concrete than the standard’s own, and includes practice questions at the end of each chapter.
If you have ever read the TOGAF Standard cold and bounced off it, this is the book that smooths the runway. It does not replace the Fundamental Content. It does make it easier to internalize.
What it does well
Concrete examples. The standard talks about architecture artefacts in the abstract. Mastering TOGAF 10 gives you an actual Business Architecture Definition Document, an actual Information Systems Architecture Definition Document, with reasonable detail and the particular tone that exam graders are looking for. If you have ever sat in an OGEA-102 exam and wondered what the marker actually wants, the examples in this book are the cleanest answer I have read.
ADM phase questions you might actually be asked. The chapter end questions are calibrated to the actual exam style. They are not the trivia-style “which deliverable belongs to which phase” questions that plague some study guides. They are more often scenario questions that test whether you can apply the ADM in a specific situation, which is what the OGEA-102 (the Practitioner exam) actually does.
An honest treatment of the Series Guides. Most TOGAF study materials ignore the Series Guides entirely. Gavandi gives them the treatment they deserve, including a useful chapter on which Series Guides matter for the exam and which are background reading.
What it does less well
The voice is dry. The book reads like a formal study guide because it is one. If you found Enterprise Architecture As Strategy or The Software Architect Elevator engaging, you will find this book the opposite. That is the genre, not a failure of the author, but it is worth knowing before you buy.
The depth on Digital Enterprise material is light. The standard itself is slightly under-developed here; the companion does not compensate. If you are using TOGAF in a digital-platform context you will need to think harder than the book asks you to.
The print quality of some editions is uneven. Diagrams in some print runs are noticeably low-resolution. If that matters to you, the Kindle edition is the safer purchase.
Who this is for
- Anyone preparing for OGEA-101 (Foundation) who wants a structured walkthrough rather than reading the standard directly.
- Anyone preparing for OGEA-102 (Practitioner) who has read the standard once and needs the scenario practice.
- A practising architect who has inherited a TOGAF shop and needs to speak the language fluently without becoming a standards lawyer.
I would not recommend it to:
- Someone with no intention of taking the exams. If you just want the framework, read the Fundamental Content of the standard directly.
- Someone looking for a critical perspective on TOGAF. This is a companion, not a critique.
How I would actually use it
If I were starting from scratch with a goal of passing OGEA-101 and OGEA-102, I would budget about 60 hours of study and split it like this:
- Read the TOGAF Fundamental Content end-to-end (about 15 hours, maybe 20 if you take notes).
- Read Mastering TOGAF 10 alongside, doing the chapter exercises as you go (about 25 hours).
- Read the Agile, Digital Enterprise, and Business Architecture Series Guides at minimum (about 10 hours).
- Do practice exams from multiple sources, not just the book’s, for the last 10 hours. Cross-source practice questions matter — the exam style is consistent but the question selection is not.
I have written this up in more detail in my TOGAF 10 self-study path post if you want the full plan.
Bottom line
If you are going to engage with TOGAF 10 at any depth — for the exams, for a TOGAF-shaped role, or because you want to argue intelligently with TOGAF skeptics — Mastering TOGAF 10 is the companion I would choose. It is not perfect. It is the best of a small field.
For the standard itself, see my review of the TOGAF Standard, 10th Edition. For the operating-model lens TOGAF presupposes but does not develop, see Enterprise Architecture As Strategy.