A Laugh a Day Keeps the Doctor Away is a humor book by Irving S. Cobb. It features a collection of humorous anecdotes and stories, with a focus on the absurdity of everyday life. The book aims to bring laughter and joy to its readers and help them escape from the stresses of daily life. Through his writing, Cobb seeks to remind readers of the importance of humor and how it can improve our mental and physical well-being.