C# book for C++ programmers

Whats a good book about C# for C++ EXPERT programmers ?

I need to learn C# for college, i could do it with the books in the curriculum but i don't want to spend a lot of time on it.

>>5
Over the decades I've done advanced programming in over a dozen languages.  Yes, picking up a language in a day is feasible and expected at EXPERT levels.  Ergo, you are no C++ EXPERT programmer.  or a troll yourself