William Dean Howells (1837-1920) forged a deep friendship with Mark Twain beginning in 1869, when Twain entered The Atlantic Monthlys Boston office to express his gratitude for Howells positive review of *Innocents Abroad*. As Howells later assumed the role of editor, The Atlantic Monthly became a pivotal platform for many of Twains works, including his acclaimed non-fiction piece, *Life on the Mississippi*. In *My Mark Twain*, Howells shares a captivating literary memoir filled with remarkable anecdotes, including their encounters with former President Ulysses Grant, who was then crafting his own classic autobiography—a project Twain would support through a groundbreaking publishing deal. Howells also beautifully captures the warmth of Twains family life during his numerous visits to the Twain residences in Hartford and Stormfield. (Summary by Dennis Sayers).