Resources for learning category theory [closed]

Question

I am going to take a course on category theory soon.

What resources can you recommend for learning about it?

What parts are relevant to learn and how do I learn to apply my knowledge?

Answer 1

• Haskell Wikibook chapter on Category Theory (CT in relation to Haskell)
• Learning Haskell through Category Theory, and Adventuring in Category Land: Like Flatterland, Only About Categories (review of some books)
• Dan Piponi's blog: http://blog.sigfpe.com/
• Abstract Nonsense for Functional Programmers by Edsko de Vries (pdf)

Answer 2

For a very first meeting with category theory I have had "A taste of category theory for computer scientists" recommended.