My bookshelf - an evergrowing collection (although it looks kind of strange from this angle). There are also many more books in my bed- and living room. : r/bookshelf
BILLY Ferrures d'angle, acier zingué - IKEA
IKEA BILLY Bookcase assembly, joining BILLY Bookcase and wall fixing of Ikea BILLY Bookcase - YouTube
BILLY Combi bibliothèque/solution angle, brun noir, 95/95x28x202 cm - IKEA
DIY IKEA Closets in Our Master Using Billy Bookcases - Bless'er House
90 degree corner installation of IKEA BILLY with Doors - IKEA Hackers