Sometimes you can’t beat a great big book. The internet is great for answering questions, but often you don’t know exactly what question to ask. In the Good Old Days™ you could thumb through a big thick book on the subject and find the answer you want. And Windows Phone 8 Development Internals brings back the good old days for Windows Phone developers. The content is well organised and presented and the coverage is vast.
The book will not teach you how to program. It is a book for seasoned developers who want to know how to make proper Windows Phone 8 applications. I managed to get my copy from an “alternative supplier” off the UK Amazon site for around 25 pounds. At that price it is an absolute steal. Strongly recommended.