Seafood

Does anyone have any seafood cookbooks they'd recommend? A friend of mine asked for a recommendation...and even though fish and seafood are what I cook more often than anything I discovered I haven't any seafood cookbooks in my collection. I'm not sure what to recommend either but was hoping you kind folks might have some recommendations?

Many thanks! :)

Thank you, Isa for your input. I passed it along...and also picked up the Fish book on my last trip to Williams-Sonoma.