In 15 months only we got four different A7 cameras. And we have even more books to learn more about how to actually use them. Here is the roundup:
English:
The Sony a7 and a7R: The Unofficial Quintessential Guide (Click here).
Sony A7 / A7R: From Snapshots to Great Shots (Click here).
The Complete Guide to Sony’s Alpha 7 and 7r (Click here).
Sony Alpha A7S: An Easy Guide to the Best Features (Click here).
David Busch’s Sony Alpha A7/A7R Guide to Digital Photography (Click here).
Spanish:
Sony A7 / A7R (Click here).
German:
Sony alpha 7/7R: Das Handbuch zur Kamera (Click here).
Sony Alpha Sony Alpha 7/7R Das Buch zur Kamera (Click here).