I buy cheap books. Here is a to help explain how to fix a paperback.
Passionate Permies – Living and Sharing Permaculture…
Lawnmower Handle Repair - Complete! (repair forum at permies)
Things I wished I learned in school but didn't (homeschooling forum at permies)
Librarians Share Their Best Book Repair Tips
how to fix anything - engineering flowchart (meaningless drivel forum at permies)
Fix a Baseboard Trim Issue - PEP BB nest.straw.fixbaseboard (pep-nest forum at permies)
Low-Tech Information Storage (low tech forum at permies)
Choosing sustainable software: my personal rules of thumb after 35 years of computing (gear forum at permies)
visiting the labs (wheaton laboratories forum at permies)
Podcast 230 - Review of Hands-On Agronomy (permaculture podcast forum at permies)
Building a Better World in Your Backyard: Instead of Being Angry at Bad Guys: Wheaton, Paul, Klassen-Koop, Shawn: 9781999171407: : Books
Companion Plants and How to Use Them by Helen Philbrick and Richard B. Gregg (books forum at permies)
Rocket Mass Heater Manual (rocket mass heater forum at permies)
A Soil Owner's Manual: How to Restore and Maintain Soil Health by Jon Stika (books forum at permies)
repairing soil - my post barley experiment (projects forum at permies)