Any good book recommendations on Risk Arbitrage?

[Sleepwell]

Interested to learn more about the subject, so far I've only read Joel Greenblatt's.

 

Does anyone have any other good recommendations?

 

Thanks

[Voodooking]

Mary Buffett / David Clark's one is very simplified and mostly a regurgitation of what you could read in Buffett's letters / Security Analysis.

 

But it is explained concisely and is short, so can be read in under an hour..,