Every year I make a new version of the C# Yellow Book. And recently I've been putting something yellow on the cover. This year I thought I'd go for banana, what with it being custard last year. I took some pictures of a single banana, but these didn't end up looking to good to be honest. So I've gone for a bunch.
The text has been tidied up a bit and I've added links to the code examples that you can now get to go with the text. It will be going to print for our new First Year in a couple of days, and then I'll update the PDF on csharpcourse.com.