John Gambrell

The first edition of this non-commercial free book has been published in 2009 by the German app development agency Enough Software. The latest 15th edition has been launched in March 2015. It provides an overview on the different mobile technologies and platforms for developers and decision-makers on more than 270 pages. 
Learn how to enter the app business and how to do your first steps as a developer for iOS, Android, BlackBerry, Firefox OS, Java ME or Windows smartphones and tablets. More than 20 writers from the mobile community share their know-how in dealing with topics such as accessibility in mobile apps, UX design, mobile analytics, prototyping, cross-platform development, native development, mobile web and app marketing.

As of today, Enough Software has distributed over 70,000 hardcopies.

This is a non-profit project, the printing costs are covered by changing sponsors. Please get in touch if you want to support the project as an author, distribution partner or sponsor. Simply write to mobiledevguide(at)enough.de.