I've been building and editing ebooks for just over four years now. I started back in 2010 with Macworld when we were still hand-compiling HTML files; and though our process changed and simplified greatly over the years, we still needed multiple programs and long working hours to put everything together for multi-platform ebook releases.
Enter Vellum 1.0 launched this January with those limited tools, and image support promised down the road. 11 months later, the company has delivered on that promise.
Full story from the iMore Blog...