Set Yourself on Fire! How to Ignite Your Passions and Live the Life You Love! Taylor, Phil Heftet / 2010 / Engelsk
Toolkit of Motivational Skills How to Help Others Reach for Change Fuller, Catherine Heftet / 2019 / Engelsk
Dying to Live A Rwandan Family's Five-Year Flight Across the Congo Ndacyayisenga, Pierre-Claver Heftet / 2013 / Engelsk
