What I Do

Celebrate Earth Day Every Single Day of the Year.

Knowing the Trees: Discover the Forest from Seed to Snag

In Knowing the Trees, naturalist and outdoor educator Ken Keffer explores our forests with both precision and charm. He offers essential context for understanding scientific knowledge and discovereis about trees and forest ecology, infromed by rich anecdotes and specific examples from across the US.

Modeled after the life cycle of a tree, this beautifully illustrated guide showcases a wide range of topics, including unique reproductive strategies, the wonders of seed dispersal, vast underground networks of roots, the importance of photosynthesis, treetop canopies, how snags and nurse logs contribue to the future of a forest, connections among other species throughout the habitat, benefits of forest bathing, and so much more. Keffer also makes the convincing case that our health depends on the health of trees and being able to see the forest and the trees. 

Knowing the Trees Reviews
“Great new book by naturalist Ken Keffer, covering nearly anything you could want to know about trees in an enjoyable format.” Matt Miller, The Nature Conservancy’s Cool Green Science


Earth Almanac: Nature’s Calendar for Year-Round Discovery

Earth Almanac presents a greatest hits of North American Nature! Structured around phenology, which is the study of the seasonal patters in nature, the day-by-day descriptions offer insight into activies and connections throughout the natural world.

Beginning with the Winter Solstice in December, Earth Almanac highlights a wide range of natural history, including mammals, birds, fish, reptiles, intertidal and marine life, trees, plants, fungi, weather phenomenon, geology, astronomy, notable environmental contributors, and more, reveals the ebb and flow of nature across North America. Each season features more than 90 entries, and sidebars throughout provide calls to environmental action, citizen science opportunities, and details on special dates or holidays. The book can be enjoyed on day, month, or season at a time – dipping in and out as you observe the world around you.

Reviews

Beautifully illustrated, Earth Almanac makes a delightful daily read-aloud with family. Keffer’s generalist approach offers encouragement to budding naturalists, inviting us to action as field data collectors and advocates for the earth. — Susannah Felts, BookPage (starred review)

Impressively informative and thoroughly ‘reader friendly’ in organization and presentation, ‘Earth Almanac: Nature’s Calendar for Year-Round Discovery’ is a profusely illustrated and extraordinary compendium of facts and stories about the biodiversity and the natural world of North America. — Michael Carson, Midwest Book Review

Lively and lovely, Ken Keffer’s Earth Almanac is a fun, enlightening guide to the wonders of nature throughout the seasons. — Kristine Morris, Foreword Reviews (starred review)

Keffer brings the relevance of the season to his descriptions with accuracy and charm. The illustrations, both full-color and line drawings, are wonderful and add a great deal to the enjoyment of reading Earth Almanac. — Danise Hoover, Booklist

In pointing out the curiosities and wonders of the natural world, Keffer invites you to suss out the relationships and connections between life forms and the environment they’re situated in, both close to home and further afield. — Barbara Lloyd McMichael, The Bookmonger, Coast Weekend

Keffer has fun with his topics, and shares the bizarre and the everyday surprises all around us. You’ll learn how ants disperse seeds, the mating dances of various birds and snow by lakes isn’t necessarily “lake effect” snow. It’s organized for daily reading, perfect for by the fire or on the back porch. But you may find, as I did, it’s difficult to keep from reading ahead. — Matthew L. Miller, The Nature Conservancy’s Cool Green Science

Book Author

I’ve taken on numerous book projects that highlight my versatility as an author. I’ve worked on children and young adult nonfiction, journal/activity books, adult nonfiction, and I even wrote a trail guide. I’m always pitching my next big ideas, so who knows what is in store next.

See below for my complete list of books.

Freelance Writer

I write for local, regional, and national outlets. Current and former clients include Birds & Blooms, Birds & Blooms Extra, Outdoors Unlimited, Wyoming Wildlife, Backcountry Journal, and Parks & Recreation. I’ve also written for online outlets including for National Wildlife Federation, National Parks Trust, Kentucky Tourism, Osprey Backpacks, CLIF Kids, and more.

Speaker

As the Wisconsin Environmental Association for Environmental Education’s Nonformal Educator of the Year, I’m a proven and dynamic speaker. From library programs and scout meetings to classroom visits and full school-wide assemblies, I can deliver catered content to audiences young and old. I also have a variety of presentations suitable for adult audiences.

Available presentations below.

Where to Find Me

Now scheduling Knowing the Trees book signings, author talks, and school visits!

Past Highlights Listed Below.

September 23 2-4 PM
Wild Birds Unliminted, Bloomington, Indiana

Available Presentations

School Visits & Other Youth Programs

Youth programming includes a combination of hands-on learning and audience participation. Each program is customized to the audience but general topics can include: Outdoor Detectives: Using Your Senses To Discover Nature Outdoor Adventures Are the Best Adventures Nature Myth Busting Everyday Naturalists Skype classroom visits

Adult Programs

Adventures of a Vagabond Naturalist
This Land is Your Land: Exploring America’s National Parks
Year-round Nature
Birdwalks and Nature Rambles
Conferences and Workshops

Speaker Highlights

Audubon Society of Missouri Spring Meeting Keynote
Allegany Nature Pilgrimage Keynote
Clif Kid Backyard Game of the Year Celebrity Judge
National Get Outdoors Day Ambassador Minneapolis Parks
National Get Outdoors Day Ambassador Indiana Dunes National Lakeshore
Allegany Nature Pilgrimage youth program
Sheboygan Children’s Book Festival presenter
Outdoor Writers Association of America Becoming an Outdoors Communicator panelist
The Wildlife Society International Conference environmental careers panelist
Audubon Society speaker
International Migratory Bird Day at Biggest Week in American Birding presenter, book signing
North American Association for Environmental Education author panel
Hog Island Audubon Youth Camp bird banding demonstration
Grand Teton National Park book signing