Buy a good old-fashioned book about C# and start learning.

The only way to the the hang of a new language is to use it. I guess that's where Unity comes into the picture.

But for learning the ins and the outs of a language, nothing beats a book. It's the perfect form factor IMO.

Of course, I am old school..

Don't pick a dumbed down teach yourself in 21 hours/days kind of book, a proper tome that appeals to you.

You need to know how the language works, why it works that way, what makes it tick.

<edit>

Also, check the date of the book and the version of .NET - it is important. You don't want to learn deprecated stuff...

</edit>

I had indeed a Wrox C# book in mind - they are well written.

<edit>

"Professional C#"

</edit>

MSDN, and Microsoft in general, is the place to go if you want recursive documentation, link loops and layers upon layers of almost-there information about a topic..

That's probably why more people don't do that.

Sure, there are bits and pieces of something that is truly useful, and it often pays to visit the source, but more often than not I quickly tire of juggling back and forth between versions and sections and links pointing to one another.

Too hit and miss for my taste. It's a pity.

I totally prefer a good book.