Your Money or Your Life
By Vicki Robin & Joe Dominguez
Your Money or Your Life is the quintessential FIRE book that started it all.
Early Retirement Extreme
By Jacob Lund Fisker
This is the book that first put all the pieces together for me. The cheesy title belies the incredibly scalable information kept inside. Written by a PhD in theoretical physics who’s been financially independent since 30, Early Retirement Extreme reads almost like a reference book. In it, he lays out his systems-theory approach to personal economic efficiency.
The Bicycling Guide to Complete Bicycle Maintenance & Repair
By Todd Downs
Mine’s from 1999, so this is the new and updated version (and also has slightly better ratings on Amazon. It’s everything you’ll ever need to know about bicycle maintenance.