Looks like Mike's new book called "Coder To Developer" is all set to launch April 9th.  A sample chapter on Unit Testing can be had here.  You can also order it from Amazon. 

It's got a great cover design and from the sample chapter, it looks like a winner.  It's written in Mike's non-nonsense, practical prose with the weight of a quarter-century of Software Development behind it.  So far it reminds me of the Pragmatic Programmers series which means it will be a must have on your shelf if you're looking to move your 'coding career' to that next level.