Get the 70-532 certification book out as soon as possible
The current book for 70-532 - Developing Azure Solutions is really very outdated w.r.t. the objectives laid out at https://www.microsoft.com/en-us/learning/exam-70-532.aspx
The current certification exam and the book are really far apart in terms of ARM, the new portal and other content and topics.
Also initially the 2nd edition of this book was planned November 17 ending but now the same has been changed to Jan 2018 which is really very disappointing.
Hence I think the books should first hit the market and then the exam objectives should be aligned. There is no point in trying to get a certification for which there is no book available in the market.
Also I heard that MS is now coming up with a Azure Community Learning program for the same. If this book had been available then it would have been a really great forum to participate in.
Jeff Wagner commented
Why not just use the online Azure docs and print them? Azure changes too fast and printed materials such as books are obsolete just about as soon they're printed.