The second new book about books is a University of California Press publication from 2011 on the experimental music journal Source: Music of the Avant-Garde (1966-1973) The book is not a straight reprint of content from Source, but the editors excerpted many great sections from 11 issues of the journal. Amazing contributions abound from Robert Ashley, Charlotte Moorman, John Cage, Morton Feldman, David Tudor, Alvin Lucier, George Brecht, etc. etc. and the editors include a useful appendix that lists all the contents and contributors. -ds