Parte pratica del corso: link ai glossari
https://www.leathernaturally.org/resources/fact-sheets/leather-terminology/
https://sites.google.com/site/isttschool/useful-information/glossary-of-terms
https://www.carlfriedrik.com/int/magazine/what-is-a-tannery
https://www.worldofleathers.com/glossary-of-leather-terms/