Best PLO Book

I would like to learn to play pot limit Omaha (high only). I've played little big bet poker or Omaha high, but I'm a strong limit hold'em and Omaha H/L player with good knowledge of poker theory. Is Ciaffone's "Omaha Hold'em Poker" the best book for me to buy? How does it compare to Ciaffone and Reuben's "pot limit and no limit poker"?