giacomos_bookshelf-1.20.1-1.3.9-neoforge.jar is a release file of the Minecraft mod Giacomo's Bookshelf for NeoForge, made for Minecraft 1.20.1. It was published on September 14, 2023 and is 0.3 MB in size. For the full description, screenshots and every other version, visit the Giacomo's Bookshelf mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.