Behrens, David W. Pacific Coast Nudibranchs. Monterey, California: Sea Challengers, 1991.

Druehl, Louis. Pacific Seaweeds. Madeira Park, BC Canada: Harbour Publishing, 2000.

Gotshall, Daniel W. Guide To Marine Invertebrates, Alaska to Baja California. Monterey, California: Sea Challengers, 1994.

Harbo, Rick M. Shells & Shellfish of the Pacific Northwest. Madeira Park, BC Canada: Harbour Publishing, 1997.

Harbo, Rick M. Whelks to Whales, Coastal Marine Life of the Pacific Northwest. Madeira Park, BC Canada: Harbour Publishing, 1999.

Horner, R.A.   A Taxonomic Guide to Some Common Marine Phytoplankton.  Bristol, UK: Biopress Ltd. 2002

Humann, Paul. Coastal Fish Identification, California to Alaska. Jacksonville, Florida: New World Publications, Inc., 1996.

Kozloff, Eugene N. Seashore Life of the Northern Pacific Coast. Seattle and London: University of Washington Press, 1973, 1983.

Love, Milton. Probably More Than You Want To Know About The Fishes Of The Pacific Coast. Santa Barbara, California: Really Big Press, 1996.

Schultz, Stewart T. The Northwest Coast, A Natural History. Portland, Oregon: Timber Press, Inc., 1990, 1998

Sibley, David A.  National Audubon Society, The Sibley Guide to Birds.  New York, N.Y:  Alfred A. Knopf, Inc., 2000.

Smith, DeBoyd L. and Johnson, Kevin B.  A Guide to Marine Coastal Plankton and Marine Invertebrate Larvae.  Dubuque, Iowa:  Kendall/Hunt Publishing Co., 1977, 1996.

Snively, Gloria. Exploring the Seashore. ,West Vancouver, Canada, Seattle, USA: Gordon Soules Book Publishers, Ltd., 1978.

Strickland, Richard M. The Fertile Fjord. Seattle, Washington: Washington Sea Grant Program, University of Washington Press, 1983.

(The Fertile Fjord is out of print, but available as a download at www.wsg.washington.edu/publications/online/fjord/fjord.html).