- Myths, legends & sacred stories, a visual encyclopedia, [written by Philip Wilkinson]
- New religions, emerging faiths and religious cultures in the modern world, Eugene V. Gallagher and Lydia Willsky-Ciollo
- Ultimate mammalpedia, the most complete mammal reference ever, Stephanie Warren Drimmer
- Super space encyclopedia, author, Clive Gifford ; Smithsonian consultant, Shauna Edson ; general consultant, Dr. Jacqueline Mitton
- The newish Jewish encyclopedia, from Abraham to Zabar's and everything in between, Stephanie Butnick, Liel Leibovitz, and Mark Oppenheimer
- Birds, by Pamela Dell ; consultant Jackie Gai, DVM, Wildlife Veterinarian
- The horse-lover's encyclopedia, A-to-Z guide, edited by Jessie Haas
- Historical atlas of ancient America, Norman Bancroft Hunt
- The world encyclopedia of flags, an illustrated guide to international flags, banners, standards and ensigns, Alfred Znamierowski
- The Star Wars book, Pablo Hidalgo, Cole Horton, Dan Zehr
- Visual encyclopedia
- The James Bond movie encyclopedia, Steven Jay Rubin
- Encyclopedia of American Indian history & culture, stories, time lines, maps, and more, Cynthia O'Brien
- Nerd Aa - Zz, your reference to literally figuratively everything you've always wanted to know, T.J. Resler
- The encyclopedia of cut flowers, what flowers to buy, when to buy them, and how to keep them alive longer, Calvert Crary with Bruce Littlefield
- My encyclopedia of baby animals, Emmanuelle Figueras
- Find it in the Talmud, an encyclopedia of Jewish ethics and conduct : thousands of Talmudic subjects, stories & expressions, Mordechai (Martin) Judovits
- The New York Times guide to essential knowledge, a desk reference for the curious mind
- Geopedia, a brief compendium of geologic curiosities, Marcia Bjornerud ; illustrations by Haley Hagerman
- The 9/11 encyclopedia, Stephen E. Atkins
- The arts, a visual encyclopedia, Susie Hodge, David Taylor, Joe Fullman, Peter Chrisp
- Mythologica, written by Steve Kershaw ; illustrated by Victoria Topping
- The complete illustrated encyclopedia of dinosaurs & prehistoric creatures, the ultimate illustrated reference guide to 1000 dinosaurs and prehistoric creatures, with 2000 specially commissioned artworks, maps and photographs, Dougal Dixon
- Seriously curious, the Economist explains : the facts and figures that turn our world, edited by Tom Standage
- The fashion book, [Carmel Allen and 15 others]
- The encyclopedia of New York, by the editors of New York
- Encyclopedia of the Black Arts Movement, edited by Verner D. Mitchell, Cynthia Davis
- Kaleidoscope of Poland, a cultural encyclopedia, Oscar E. Swan with Ewa Kołaczek-Fila ; with a foreword by Adam Zamoyski
- Birdpedia, a brief compendium of avian lore, Christopher W. Leahy ; illustrations by Abby McBride
- The encyclopedia of spices and herbs, an essential guide to the flavors of the world, Padma Lakshmi ; with Judith Sutton and Kalustyan's Spice Shop ; photographs by Evan Sung
- Encyclopaedia Britannica; or, A dictionary of arts and sciences, compiled upon a new plan., In which the different sciences and arts are digested into distinct treatises or systems; and the various technical terms, &c. are explained as they occur in the order of the alphabet. : Illustrated with one hundred and sixty copperplates., by a Society of Gentlemen in Scotland. ; In three volumes
- Criminal law, a desk reference, Paul Bergman, Professor of Law
- The Twilight Zone encyclopedia, Steven Jay Rubin
- The encyclopedia of Earth, a complete visual guide, [authors, Michael Allaby [and others]]
- Mayo Clinic A to Z health guide, edited by Scott C. Litin, M.D
- Macmillan encyclopedia of families, marriages, and intimate relationships, James Ponzetti, Jr., editor in chief
- Medical symptoms, a visual guide, [consulting medical editor, Shannon Hach] ; contributors : Dina Kaufman, Michael Dawson, Mike Wyndham, Martyn Page
- The Underground Railroad, an encyclopedia of people, places, and operations, Mary Ellen Snodgrass
- Mythopedia, an encyclopedia of mythical beasts and their magical tales, Good Wives and Warriors ; [text by Anna Claybourne]
- Medical symptoms, a visual guide, [senior editor, Miezan van Zyl; consulting medical editor, Shannon Hach, MD]
- Encyclopedia of whales, dolphins and porpoises, Erich Hoyt ; principal photography by Brandon Cole ; illustrations by Uko Gorter
- American Revolution, the definitive encyclopedia and document collection, Spencer C. Tucker, editor ; James R. Arnold and Roberta Wiener, editors, documents volume ; Paul G. Pierpaoli, Jr., associate editor ; Paul David Nelson, Jim Piecuch, assistant editors ; foreword by Jeremy Black
- Presidents and presidencies in American history, a social, political, and cultural encyclopedia and document collection, Jolyon P. Girard, editor
- African American culture, an encyclopedia of people, traditions, and customs, Omari L. Dyson, Judson L. Jeffries, and Kevin L. Brooks, editors
- Trees, leaves, flowers & seeds, a visual encyclopedia of the plant kingdom, written by Dr. Sarah Jose ; consultant, Dr. Chris Clennett
- The complete dog breed book, consultant editor, Dr. Kim Dennis-Bryan ; comissioned photography by Tracy Morgan
- My encyclopedia of very important dinosaurs, edited by Sally Beets, Hélène Hilton, Violet Peto
- The Cold War, the definitive encyclopedia and document collection, Dr. Spencer C. Tucker, editor
- Space!, senior editor, Ben Morgan ; contributors, Robert Dinwiddie [and 5 others]
- The joy of basketball, an encyclopedia of the modern game, Ben Detrick ; illustrated by Andrew Kuo