Need more help in understanding the following C# terminologies and their usage in real life situations, with a bit of examples.

Question

I've been studying C# and I'm having a hard time understanding the following terminologies:
Delegates, events and anonymous methods.
Attributes, reflection and generics.
Processor directives.
Indexers.
Collections.
Multi threading.
anyone who understands any of the above, please do explain them to me.
Thanks in advance.
To all C# gurus

Answer 1

try
..fundamentals of Computer Programming with C# by Svetlin Nakov
...the book can help you understand