Translation of Reidemeister's "Einf\"uhrung in die kombinatorische   Topologie"
  This is an English translation of Reidemeister's book "Einf\"uhrung in die kombinatorische Topologie" from 1932, the first monograph on combinatorial group theory and topology, with some added comments by the translator and Warren Dicks. 
John Stillwell
math.HO