This book by Dr. Cossignani took 11 years to complete. It is probably the most thorough representation of these shells to date. The book contains over 750 species represented in more than 2600 photographs. Because it is mainly a photo iconography with minimal text in Italian, and in English. The text covers the systematic classification of these shells. The color photographs are of high quality, despite the small size of many shells. Most plates contain 9 or fewer shell images at a good size. As an atlas, the shells are arranged geographically with a species list preceding each region's plates. A few plates cover fossil species. While one could debate whether too many variations among these are considered distinct species, the book provides a thorough and clear visual documentation of these shell families.
