I'm writing a new book

Last year I wrote a book about Python. This year I'm doing another about C#. It's an exam text for the 70-483 Programming in C# Microsoft Certified Professional exam. 

The Amazon site says, rather optimistically, that the book will be in the shops at the end of April this year. I'm fairly sure that it will be a little bit later than that.

But it will be well worth waiting for.