[ghaff]

The book I put out through a publisher (Apress) was essentially open source software (How Open Source Ate Software) for the business person who understands it's important but really doesn't know where to get started to learn about it and how it works from a community, development, and business perspective.

I did feel I was stretching to fill some pages in the first edition. That said, I was asked to do a second edition and it actually ended up a bit longer. I cut some "filler" that I didn't think was essential, reorganized, and dove more deeply into some topics (like legal matters with the assistance of a lawyer colleague) and I think it is now reasonably in right length territory; it covers a lot of territory.

Another book I self-published on software packaging broadly and its analogs to various things in the real world today and historically ended up around 100 pages.