Covering 18 species of sharks from the 27-inch brown catshark to the 39-foot basking shark, Dr. Alessandro De Maddalena, Dr. Antonella Preti and Tarik Polansky's Sharks of the Pacific Northwest: Including Oregon, Washington, British Columbia and Alaska (Harbour 2007) is an illustrated guide aimed at a broad, non-technical readership.

Review of the author's work by BC Studies:
Sharks of the Pacific Northwest: Including Oregon, Washington, British Columbia, and Alaska