Let me start by saying this:

Every chapter is a 'world in itself'.

That is the amount of detail you gain from each chapter. The chapter names might sound simple and naive, but the author takes you on a deep-dive on that topic.

I started with the 3rd edition and finished with the 4th one and I regret not having read this book a little early in my career. IMHO if you have at least 3 yrs of experience in .net/C#, this book can bolster your understanding by leaps and bounds. Beginners (6 mos to 1 yr of exp) might not appreciate very much.

Doubtless that I have read many tech-books being a software professional, but this one is the best one so far.

The chapters 5 - Primitive, Reference and Value Types and 21 - The Managed Heap and Garbage Collection are my take-away's from this book. I haven't seen another book/article that explain the topics in these chapters as clearly as the author does. ( )

I recommend you to read "Clr via C#" if you want to go deeper about CLR ( )

THE best book on internals of C# and CLR. A must read for every serious .NET developer.
Simply amazing book. Explains all the internals in an easy to follow way and unveils the mysteries of .NET internals. ( )

If you develop in C#, you should own this book!: Dont buy this book if you want an introduction to C#, but if you are a expereinced C# developer that wants indepth CLR/C# information explained in a clear and concise manner then Jeff Richter does a great job in clearly articulating his suject matter.

This is one of the best books I have seen on C# for a long time.

An absolutely GREAT book. If your team is doing ANY .NET development I would highly recommend someone on the team read this book. My friend asked me why I preferred this 600 page book to the 100 page C# Precisely. The answer is that Jeffrey Richter dives into the details and explains the nuances so I don't have to figure them out for myself. I really can't recommend this book enough. GO READ IT NOW!