Born in New York City, Farenga worked closely with homeschooling leader John Caldwell Holt on his Boston-based magazine, Growing Without Schooling (GWS).
Farenga is a prolific writer, and has authored or contributed to many of the other educational publications by Holt Associates.
He has written articles for numerous publications including Mothering, Paths of Learning, Home Education, and The Bulletin of Science, Technology, and Society.
He contributed chapters to The Encyclopedia of School Administration (1988) and A Parent's Guide To Homeschooling (2002).
Though GWS ceased print publication in November, 2001, and his own three children have grown to maturity, Farenga continues to write and edit educational material, and remains an active homeschooling advocate and consultant.