My collection / Kallax units are amazing! : r/graphicnovels
A Glam IKEA KALLAX Hack for $200 | Apartment Therapy
KALLAX Shelving unit with 4 inserts, white, 147x112 cm - IKEA
Kallax from IKEA is great for game books. 15x15 shelves double reinforced pegs and rock steady under heavy load of books. I just put mine up and filled them. Heres a pic