The layout is voluntarily very sober, above all functional, luxurious only by the materials and the attention brought to details. The books, arranged by format, by intellectual clusters, by binding periods, are therefore highlighted. The bindings themselves become the decor because of their various colors and gilts.
The ceiling is ornated with the Grand Condé's comrades-in-arms coats of armors. Condé's bust by Coysevox rests on the mantlepiece.
Food and drinks are strictly forbidden inside the Book Cabinet.