Mushrooms of Alaska
Steve Trudell, Noah Siegel & Kate Mohatt
Birds of Texas
David Sarkozi
Birds of Arizona and New Mexico
Melissa Fratello & Steven Prager
Trees and Shrubs of the Pacific Northwest
Mark Turner & Ellen Kuhlmann
Wildflowers of New England
Ted Elliman & Native Plant Trust
Birds of the Pacific Northwest
John Shewey & Tim Blount
Mushrooms of the Northeastern United States and Eastern Canada
Timothy J. Baroni
Butterflies of the Pacific Northwest
Robert Michael Pyle & Caitlin C. LaBar
Wildflowers of the Rocky Mountain Region
Denver Botanic Gardens
Wildflowers of the Atlantic Southeast
Laura Cotterman, Damon Waitt & Alan Weakley