There's been some interest in my opinion of writing an ebook using Markdown. I wrote the original Foundations of Programming using Word. Aside from the code formatting, it was an ok experience. I was a fan of Word for a very long time. However, for Foundations of Programming 2 and The Little MongoDB Book, I decided to use Markdown.
Markdown, in case you aren't familiar, is a simple markup language. You can check out the markdown syntax here. I didn't know it (which is one of the reasons I picked it) and it didn't take more than a few paragraphs to get comfortable.
I consider anything more than bold, italics and headers as evil. Ok, that's a slight exaggeration, but I do believe that, when it comes to any written material (emails, presentation, blogs, books, ...) less is more. It's the reason people use the Readability bookmarks. It's part of the reason Apple presentations are so good.
My exact process was to write everything in markdown, and then use pandoc to handle the conversion to other formats. Pandoc relies heavily on LaTeX which is a markup and "document preparation system". This meant that I had to install the mammoth MacTeX. Once installed, I was able to use the
markdown2pdf wrapper. (I had problems manually going from markdown to LaTeX to pdf, but thankfully in the end the wrapper produced a nice output.) Within the github repository, you can see the template I used to fine tune the final pdf - the main readme has more insight on the process.
Now, if you look at The Little MongoDB Book's markdown, you'll see that I use LaTeX twice directly in the file (which Pandoc handles properly). The first is around the title page - it requires special margins and stuff. The 2nd is to create a page break for each chapter. Having said that, page breaks would be a wonderful addition to Markdown.
If I ever write another book, I have no doubt that I'll take a similar route. The process just feels way more frictionless. I end up worrying less about formatting and focusing more on content. I'm also happy with the end result. Beyond that though, check out the network graph for The Little MongoDB Book. I sincerely believe that a simple markup language is a huge enabler for this type of community contribution. Oh, and merging pull requests on .markdown files in github is cake.