Three collections of songs come to mind. RISE UP SINGING, put out by the folks at Sing Out in Bethlehem PA 1-800-493-7464, has words to 1200 songs including sections on freedom, ecoology, peace, struggle, unity, women and work. Includes a discography and chords for each song. Then there's Pete Seeger's book "Carry It On!" (Simon and Schuster) and Edith Fowke and Joe Glazer's "Songs of Work and Protest."