Basically a cheat-sheet. Best for beginners coming with some FP background, the book mostly covers the language sintaxes and features, with a gap on FP mindset.
A good introduction to the F# language. This book covers a lot about F# and how it can integrate with the rest of .NET. It has nice simple examples to illustrate each topic. It taught me the language constructs, but I still have a long way to go to really understand how to think functionally.