San Francisco has been home to some of the true giants of American literature and poetry, from Jack London and Mark Twain to Jack Kerouac and Lawrence Ferlinghetti. To honor that past, 12 streets were renamed for these and other writers on Oct. 2, 1988, and there will be a 25th anniversary celebration of that dedication coming up on Oct. 6. So the Guardian worked with writer Nicole Gluckstern, Burrito Justice, and City Lights Bookstore to create this Literary Bike Tour map that attendees will follow that day, starting at 11am at Jack London Street and concluding with a reading at 2pm in Jack Kerouac Alley. So join the festivities or just take the tour on your own.