Straw Bales for Shelter: a guide for building emergency shelters with bales is free to download and share curtesy of Matts Myhrman, David Eisenberg and Robert Cook. It offers clear explanations and excellent details for straw bale shelter construction. It is a complement to the Out On Bale Straw Bale Shelters video covering the same topic filmed 30 years prior, which shows step-by-step how to build a straw bale shelter.