Are Your Lights On?
How to Figure Out What the Problem Really Is
Software Testing Conference in Anaheim & Online
Agile + DevOps East
The Conference for Agile and DevOps Professionals
Software Testing Conference in Orlando & Online
If you only have one book on problem solving (I have about 50), this should be it. Useful, concise, and fun to read. This book will give you tools for problem definition and problem solving that will help you the day after you read it.