Geology professor Arthur Sylvester takes readers on a fieldtrip around Southern California with his new geology books. The new edition brings geologists Robert Sharp and Allen Glazner’s original paperback up to date with new information, colored photographs and exquisite maps created by O’Black Gans, a staff member in Santa Barbara City College’s Earth science department. The idea was to give a broad-brush overview of what people might want to know when they visit these places, Sylvester explained, without going into the minute details that a professional geologist would require.