Spirits of the Water: Native Art Collected on Expeditions to Alaska and British Columbia, 1774-1910

I would say that roughly 75% of the items pictured in this book are masks, with the remainder being pictures of carved bowls, woven hats, small carved figures, etc. There are a couple of pictures of a decorated shirt and some boxes.

If you're looking for books that cover Pacific Northwest Coast native artwork in more general terms, or how to do it, or about totem poles, then there are better books.

If, however, you want a high-production-values book loaded with very high-quality pictures of some outstanding examples of Pacific Northwest Coast artwork, especially masks, then this is a fabulous book and you should not hesitate to buy it.