[This post is part of a series on "Mental models and beliefs: an exercise to identify yours." If you don't see a Table of Contents to the left, click here to view the series, where you'll get more value than reading just this post.] Strategy is a fundamental study for many fields, including leadership, military, games, and plenty areas of business. If you're reading this page, you don't need motivation to understand its value. I've read a bunch on strategy, taken classes, written a book on strategy and North Korea, and lived through my share of strategic situations. I play chess decently too. Of all the resources I know, one stands above, the book Competition Demystified: A Radically Simplified Approach to Business Strategy, by Bruce…