This is a tough one. The first several chapters I found incredibly useful. And I'm glad I read it overall, but I had some issues with it.

Since it's older, it's obviously a bit outdated and not the most inclusive (the pronouns Jesus just use they/them for everything).

And while I get that it's meant to be a beginner's coverage of a lot of topics, I found that it so often focused on one type of BDSM. The later chapters seems to only focus on that or are so general/repetitive that I'm gaining nothing from them.

I don't know. I'm conflicted as some aspects of the beginning we're really helpful to me as more of a newcomer, but the rest felt a bit like being talked down to if that makes sense.