I am new to MongoDB but this book has been helpful in evaluating and learning about how to scale with it. At work we’ve been thinking about using it for some projects but it was important to investigate and review it in more detail before we jumped into it and added it to our stack. Overall, it’s a great book on Mongo scaling, succinct and complete. It doesn’t elaborate on every possible scaling topic, but it’s enough detail to make important architectural decisions. Mongo is a great new technology, and this book is a good companion. For more info on using mongo in general, check out “MongoDB: The Definitive Guide.”