Did you know that there exists a book about Open Data Kit? Thanks to Tomonori Hoshi, there is:
Oh, did I mention that it's in Japanese? The book is a practical guide to doing fieldwork with ODK aimed at increasing our popularity in Japan, and oh-so-much work has gone into it:
The step-by-step instructions include carefully annotated screenshots and how-to guides on accomplishing the not-alway-easy tasks one might want to do with ODK software.
Many thanks to Tomonori for putting all this effort into the book: ODK does not work without people like you. And thanks as well for shipping me a copy! If you would like a copy of your own, they are available on Amazon.