I made a "banned-book" bookshelf with a hidden compartment - woodworking post - Imgur
Secret Spaces - FineWoodworking
QLine SafeGuard Shelving System Double Bookcase | QLine Design
20 Secret Doors and Clever Hiding Places | Make:
hiddenbookcasedoors:Secret bookcase door – This is a great do… | StashVault - Secret Stash Compartments | Hidden rooms, Hidden door bookcase, Bookshelf door