Book excerpt: Hundreds of public stairways traverse San Francisco's 42 hills, exposing incredible vistas while connecting colorful, unique neighborhoods, and veteran guide Adah Bakalinsky loves them all. Her updated Stairway Walks in San Francisco explores well-known and clandestine corridors from Lands End to Bernal Heights while sharing captivating architectural, historical, pop culture, and horticultural notes along the way. This revised and expanded edition has been thoroughly updated and includes two additional walks, new maps, and new color photographs. The two new walks presented are: The Blue Greenway Walking, a new history, which follows the Embarcadero and weaves along the present day contour of the Bay into the future parklands and new neighborhood of San Francisco; and Jazz Takes A Walk in the Sunnyside neighborhood where the undulating geology of San Francisco invites one to hear the dance in the walk. A comprehensive appendix lists every one of the City's 600-plus public stairways. Long-term residents and tourists alike have used the book for over 25 years to adventurously uncover San Francisco's unexpected details.