"SilverStripe – Das umfassende Handbuch" is now in German bookstores and available online to purchase for €39.90.
At 450 pages, it provides a more structured and comprehensive set of SilverStripe technical documentation than what is currently available at doc.silverstripe.com, so we strongly encourage German developers to buy the book and become a much more educated, sophisticated SilverStripe developer!
(To our English readers: we aim to have the book in English later this year.)
The book is written by SilverStripe core developer Ingo Schommer (pictured below), and German tech-writer Steven Broschart.