Read first, work later
Read the whole thing without doing anything, then return to the sections that stayed with you. Common among people who find prompts intrusive on a first pass.
“Workbook” sets an expectation: blank lines, prompts, and something you fill in. Here is what this book actually asks you to do.

Asked and answered without hedging, because this is usually a purchase-blocking question.
It is a recovery guide that contains reflective exercises, not a fill-in-the-blanks workbook with ruled response space on every page. You are prompted to write, but the writing happens in your own notebook or a notes app rather than in printed boxes.
Yes. The explanatory sections stand on their own and many readers work through them first without doing the exercises. Most people who return to the exercises later report they land differently the second time.
Paperback, for the practical reason that it lies flat next to a notebook and takes annotation. Hardcover works too if you want it to survive repeated use.
It works well for highlighting and searching back through what you marked. It is less convenient if you like writing in margins.
Many people do, and bringing a specific written observation to a session is usually more productive than trying to reconstruct a week from memory.
A rough proportion, so you know what you are buying.
A representative sample of the kind of prompt the guide uses, so you can judge whether the format suits you.
None of these is the correct method. They suit different readers and different weeks.
Read the whole thing without doing anything, then return to the sections that stayed with you. Common among people who find prompts intrusive on a first pass.
Work one section fully before moving on. Slower, and the approach most likely to produce durable change, provided you can tolerate the pace.
Go straight to whatever is currently difficult and ignore the rest until it becomes relevant. Least tidy, and often the most realistic when things are hard.
The workbook question sounds like a formatting detail and is not. People buy workbooks expecting structure and then feel they are doing it wrong when they do not complete the exercises. That sense of failing at a self-help book is a genuinely common reason for abandoning one, and it is worth avoiding by knowing the format in advance.
The guide is written to be usable at several depths. The explanatory content works read straight through. The reflective prompts add a layer for readers who want it. The structured exercises reward repetition over time rather than one-time completion.
If you know that written exercises are not something you will do, that is useful information rather than a disqualification — the book still functions, and the audiobook edition exists precisely for readers who take material in that way. If you know that writing is how you process things, the paperback plus a cheap notebook is the setup most readers describe.
A workbook you never write in is a book you have decided you are failing at.