A simple, stupid, introduction to Buddhism perfect for someone like me who knows less than nothing about one of the world’s most important philosophical systems / religions. What it has: a concise overview of the life of the Buddha and the central tenets of the system as it was understood at the time of his death. What it doesn’t have: an in-depth look at the ways Buddhism would come to change as it was reinterpreted throughout the world. You want the basics of the life of the buddga and how he came to his concept of he universe. This book has got it. Want to understand the difference between Zen and Tibetan Buddhism? Go elsewhere.
Buddhism is far, far too complex for a single book to cover it all, but if you’re starting from scratch, this is as good a place as any to dive in.