Concord-area libraries, schools and community groups can now host their own Thoreau event using a free toolkit built around the first-ever full-length documentary on Henry David Thoreau — a project seven years in the making, executive produced by Ken Burns and Don Henley, and narrated by George Clooney.

The Walden Woods Project, the Lincoln-based nonprofit protecting nearly 200 acres around Walden Pond, released the "Henry David Thoreau Discussion & Engagement Guide" in partnership with WETA, the PBS station behind the film. It's a free PDF download at walden.org.

The guide covers discussion questions across four themes: American history, environmental justice, civic responsibility and nonviolent resistance, and the search for purposeful living, plus a Thoreau-inspired reading list and the group's "Where's Your Walden?" activity. Groups can also request one of three screening reels from WETA, running 29 to 40 minutes, focused on civil disobedience, nature, or a general overview of Thoreau's life.

A companion resource called "Henry At Home" adapts the Walden Woods Project's elementary curriculum into hands-on activities built around noticing, wondering and reflecting — echoing Thoreau's own habit of collecting natural objects on his daily walks through Concord.

The three-part film premiered on PBS in March as the first full-length documentary ever made about Thoreau, directed by Erik Ewers and Christopher Loren Ewers and filmed over more than seven years in and around Walden Pond and Concord. It's streaming now through PBS Passport.

Don Henley — yes, the Eagles musician — founded the Walden Woods Project in 1990 and has chaired its board ever since. Its research library near Walden Pond holds what it calls the world's largest collection of Thoreau-related materials.