Visual C#, C#, what's the difference?

Hi,

I'm not totally new into programming, but C# and Visual C# are new things to me and I thought to learn those languages, so I bought a while ago book "Professional C# 2008", and it seemed more like a reference than a teaching book. probably a great book anyway, and useful once I learn the basics, but I thought I should buy first some book which teaches the basics. "Teach Yourself Visual C# 2008 in 24 Hours" seemed like a good option so I bought that, and now I don't understand this thing at all anymore. Neither of the books refers to the other name, everything in that first book is "C# this, C# that", the index has absolutely nothing about Visual C#. And in this new book, it is absolutely vice versa.

I have myself thought that when it is about making user interface etc. it is Visual C#, and when it is about making the functionality that control X does, it is about C#. Is this true? Or is it really so like it seems in the book indexes, that these two languages have absolutely nothing to do with each other? If I first read this "Teach Yourself Visual C# 2008 in 24 Hours", can I expect that I can build on that by reading this "Professional C# 2008"?

Thank you for any answers,
Jaymond Flurrie