My three favorites from Gerald Weinberg: 1. 'The Secrets of Consulting: A Guide to Giving and Getting Advice Successfully' I was put off for a decade by the click-bait title but this is a profound little book that helped me get perspective on problem solving in my work and myself. 2. 'Becoming a Technical Leader' The text is great; working the exercises for yourself will make you a stronger thinker. 3. 'An Introduction to General Systems Thinking' One of his densest, driest books, but a great summary of the highlights of the field with plenty of thought problems in the exercises and plenty of pointers for digging deeper.
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