“I study history… because I am interested in the future.” – Peter Rachleff Lyrics by Si Kahn, a quote by labor activist historian Peter Rachleff, and artwork by Ricardo Levins Morales drive home the importance of history in social change activism. Also available as a poster. Unless otherwise noted, our greeting cards are 5x7 inches and blank inside for the customer's any-occasion personal message. Cards are on 12pt stock with a coated front and are uncoated inside for easy writing. White A7 envelopes are included.