Mary Walsh: Open Book was a weekly book club series on CBC Television, which aired from 2002 to 2005. Similar to Oprah's Book Club, the series was hosted by actress and comedian Mary Walsh, who moderated a discussion about books and literature with a panel of celebrities and other guests. Each episode of the series was structured around discussion of a single book, including both Canadian and international literature, and both fiction and non-fiction titles. The series aired at 11 p.m. on Sunday nights, attracting relatively strong ratings for a late time slot.