Scope and Closures by Kyle Simpson
My rating: 4 of 5 stars
What a great little book. This might be the first Javascript book I’ve managed to finish without having my eyes glaze over from the tedium. Modern technical books tend to lean far too much on how-to examples and not enough time on deeper explanations. This book focuses on one particular aspect of the language, scope rules and closures, and explains it in depth. The author understands how important well-crafted analogies and mental models are for achieving genuine understanding.