I have read many (and I do mean many) software books (including all those on my way to my grad degree.) Jesse Liberty is one of the best. This was the first book I bought by him and he is on the top of my list of great writers in the technical field. I usually only write reviews if something is really good or really bad. This book is really good. I have read it cover to cover and refer to it often! It is the first book I grab when I have a C# question. If you need a great intro - reference, this is it.