Here are valuable and interesting links.
The first two, from Tina Henderson, is all about Working with a Typesetter. Tina is a gifted book designer and compositor, with a great deal of good advice and insight. Enjoy:
And this, an almost-hour-long slideshare from a recent ebook production tools and workflow webinar, is from Joshua Tallent of Firebrand Technologies. Joshua outdoes himself here with the clarity and depth of information. Wherever you are on the spectrum of ebook development, you’ll find something new to grab onto and use right away.