First published in 1972, The Universal Traveler is a mad masterpiece of D.I.Y. hippie culture that deserves its place in history next to the Last Whole Earth Catalog. This quirky guide to the design process was created long before “design thinking” became a buzzword among business-oriented designers. Authors Don Koberg and Jim Bagnall produced the book themselves with crude but loving care, using Presstype headings, typewriter text, and photocopied illustrations to yield a goofy but readable volume flavored with subtle whiffs of hemp and granola. (via Before Design Thinking)