“For years Thoreau’s stunning late-life charts of natural phenomena have seemed impossible to read—until now. It took Kristen Case, with a scholar’s eye and a poet’s heart, to reveal these baffling works as nothing less than the culmination of Thoreau’s life-long artistry, in which all that seemed lost to the past can live again in the unfolding of the present. Henry David Thoreau’s Kalendar invites us to reimagine our lives in keeping with Thoreau—and with Case, herself a literary artist whose illuminations deserve to be lived with and reflected on, hand in hand with Thoreau’s—across the turning of time.”

“At his death in 1862, Henry David Thoreau left behind a rich seedbed of unfinished projects. Now, Kristen Case, an amazingly perceptive scholar, has sketched for us the promised fruit of one of these. Thoreau’s Kalendar, a years-long charting of ‘natural phenomena’ in Concord, Massachusetts, pointed the way toward an ecology of time in which the mind and moods of the naturalist are rightly joined to the plants and animals whose seasons Thoreau had so faithfully recorded. This book is a major contribution, not just to Thoreau scholarship but to everyone from ecologists and climate scientists to historians and philosophers of time.”