This book provides an accessible introduction to the conceptual frameworks as well as practical guidance on how to use them. I am very glad that I chose this one from the plethora of books on the subject. I bought "Everything is Miscellanous" at the same time which is anecdotal with very little that's solid to grab hold of.
Lambe is both an experienced consultant and an academic, and this book is both practical and theoretical. He doesn't seem to have been paid by the word, either, so the book is both shorter and easier to read than I expected, which is a mercy.
Highly recommended, if you can cope with the price.