Perceptive and valuable personal explorations of time alone include A Book of Silence by Sara Maitland, Party of One by Anneli Rufus, Migrations to Solitude by Sue Halpern, Journal of a Solitude by May Sarton, The Point of Vanishing by Howard Axelrod, Solitude by Robert Kull, Pilgrim at Tinker Creek by Annie Dillard, The Diving Bell and the Butterfly by Jean-Dominique Bauby, A Field Guide to Getting Lost by Rebecca Solnit, The Story of My Heart by Richard Jefferies, Thoughts in Solitude by Thomas Merton, and the incomparable Walden by Henry David Thoreau.