Motivation for writing is not money. Making a living (in the US) writing technical books is highly unlikely. 10% is a nice surprise "mailbox money", not somethi

Motivation for writing is not money. Making a living (in the US) writing technical books is highly unlikely. 10% is a nice surprise "mailbox money", not something you depend on. Whatever the motivation, you want to best product you can deliver, right? That's where a professional publisher comes in. O'Reilly is best of the three publishers I've worked with. My editors were great, they tighten the prose so much and I learned a lot about writing along the way.