Common Mosses of the Northeast and Appalachians (Princeton Field Guides) by Karl B McKnight, Joseph R. Rohrer, Kirsten McKnight Ward, & Warren J. Perdrizet.
Gathering Moss: A Natural and Cultural History of Mosses by Robin Wall Kimmerer.
Mosses Lichens & Ferns of Northwest North America (Lone Pine Guide) by Dale H. Vitt, Janet E. Marsh, & Robin B. Bovey.
Mosses: Utah and the West by Seville Flowers & Arthur Holmgren.
How to Know the Mosses and Liverworts (Pictured Key Nature Series) by Henry Shoemaker Conard and Paul L. Redfearn.
The Moss Flora of Mexico, 2 vols. (Memoirs of the New York Botanical Garden) by Aaron J. Sharp & Howard Crum.
Mosses of Eastern North America (2 Volume Set) by Howard A. Crum and Lewis E. Anderson.
The Moss Flora of Britain and Ireland by A. J. E. Smith.
Mosses and Liverworts of Britain and Ireland, a field guide, by British Bryological Society
Bryophytes of Colorado: Mosses, Liverworts, and Hornworts by William A. Weber and Ronald C. Wittmann.
Moss Flora of the Pacific Northwest by Elva Lawton.
California Mosses by Bill & Nancy Malcolm, Jim Shevock, & Dan Norris.