I pulled out my copy of the handbook a week before a CSSBB mock exam and realized I’d been treating it more like an encyclopedia than a coach. That was a mistake, and it cost me weeks of unfocused prep time.
The certified six sigma black belt handbook, authored by T.M. Kubiak and Donald W. Benbow and published by ASQ Quality Press, packs in 960 pages of detailed coverage across various domains. The third edition came out in 2014, updated to align with the 2015 revision of ASQ’s CSSBB Body of Knowledge. This alignment matters more than most people think when choosing study materials.
The CSSBB exam has a pass rate around 50%, which is a bit humbling for anyone who’s spent years in process improvement. Exam fees hit $438 for ASQ members and $538 for non-members, so failing hurts financially. Before you crack the spine, ask yourself whether this book is truly the right tool or just the obvious one.
What’s Inside the Handbook
You’ll find all six domains from the ASQ CSSBB Body of Knowledge here: enterprise-wide deployment, organizational process management, team management, and the phases of define, measure, analyze, improve, and control. The coverage is comprehensive, which is a big plus. Each chapter matches a BOK section, making it easy to identify gaps against the official exam blueprint.
The statistical content is more thorough than many expect. Hypothesis testing, measurement system analysis, regression, and design of experiments — every topic receives serious mathematical treatment, not just surface-level definitions. Some chapters include worked examples, but you might find there aren’t as many as you’d hope for solid exam prep. The appendices? They’re actually useful: you get statistical tables, formulas, and a glossary that’s worth bookmarking for quick reference.
What you have here is essentially the closest thing ASQ has to an official reference. No other book covers the full BOK at this level of detail. That’s its main advantage over other prep guides, which often breeze through the more technical sections.
Using It for Exam Prep
People often compare the handbook to a dedicated question bank, but they serve different purposes. The handbook builds conceptual understanding, while question banks test your recall under pressure. You need both, but the order in which you use them matters.
I’d recommend reading the handbook by BOK section instead of cover to cover. Start with your weaker areas, map your reading to the exam’s weighting, and make notes. You can do this because the chapters are modular enough to read out of order without losing context.
- Read one BOK domain in the handbook
- Attempt 20-30 practice questions on that domain right after
- Return to the handbook for concepts you got wrong
- Repeat, focusing more on heavily weighted domains like Analyze and Improve
The handbook doesn’t include practice questions, which is its biggest limitation as a study tool. You’ll need to supplement with ASQ’s own practice exams or a third-party question bank. From what I’ve seen, candidates who combine the handbook with at least 300 timed practice questions tend to perform better than those who stick to the handbook alone.
Timing Your Study
Most folks I’ve talked to spend about three to five months prepping for the CSSBB. If you’re already in a Six Sigma role, you can probably shorten that. If you’re newer to statistics, I’d budget closer to five months and focus your time on the quantitative chapters, which run about pages 300 to 700 in the third edition.
Limitations of the Handbook
The writing here is dense and dry. That’s not a complaint, since it’s a reference text, but it does mean retention is tougher than with a well-crafted prep course. For something like advanced DOE or multivariate analysis, this can be particularly challenging.
Compared to an online course with video explanations, the handbook falls flat on engagement. Video instruction often benefits visual learners, especially when learning to interpret control charts or design experiments. While the handbook excels in depth and BOK alignment, it doesn’t quite capture the experience of watching someone work through problems step by step.
Another issue worth mentioning is currency. The third edition is from 2014 and aligns to the 2015 BOK revision. ASQ revises the BOK periodically, so it’s a good idea to confirm the current version before buying. As of my last check, no fourth edition had been released, but that could change.
Maximizing Your Study Efforts
The certified six sigma black belt handbook works best when you see it as a coach, not just a comfort blanket. Reading it passively might give you some familiarity, but engaging with it actively—like annotating, testing yourself, and revisiting it after addressing practice questions—truly prepares you for the exam.
The 50% pass rate exists because people underestimate how applied the exam questions are. The handbook lays the foundation; your job is to stress-test it with real problems before the big day.
FAQs
Is the Certified Six Sigma Black Belt Handbook enough to pass the exam?
Probably not alone. Most successful candidates pair it with a dedicated practice question bank containing at least 300 questions to develop the applied problem-solving speed needed for the exam.
What edition of the CSSBB handbook should I buy?
The third edition, which came out in 2014, aligns with the 2015 BOK revision. Make sure no newer edition exists before making a purchase.
How long does it take to study for the Six Sigma Black Belt exam?
Most candidates take around three to five months. Individuals with prior Six Sigma experience can shorten this period; those with limited stats backgrounds usually require the full five months.









