Built-in bookshelf doesn't need a library ladder - Curbed
Modern custom home library with rolling ladder | bookcases
DIY Library Bookshelf with Desk --PRINTABLE BUILDING PLANS!
Home Libraries with Ladders | Library Ladders | Neville Johnson
The Built-in Bookshelves and Rolling Ladder in the Library - Making it Lovely
Quiet Glide 8 ft. Red Oak Library Ladder (9 ft. Reach) Black Contemporary Rolling Hook Hardware 12 ft. Rail and Horizontal Brackets QG.540-8RO-12-H.08 - The Home Depot