Bill,
In addition to the Colman Andrews book mentioned above, you may want to try Marimar Torres'
The Catalan country kitchen: Food and wine from the Pyrenees to the Mediterranean seacoast of Barcelona.
These two are the best Catalonian cookbooks in English. Most public libraries carry at least one of these.
I also recommend Janet Mendel's My Kitchen in Spain: 225 Authentic Regional Recipes she's a great chef!
Torres recipes are easy to follow. I have her other book, The Spanish Table. My only negative comment is that there aren't enough pictures and drawings of how to prepare a particular recipe.
Buen provecho!
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The world is a book, and those who do not travel read only a page.
--St. Augustine (354-430)