Shelves 8 x 2.5 in and spaced 2 in apart are cut for washi tape, pens and sticky notes rather than books - this is a desk organizer in bookshelf form, and four of those shelves lift out when something taller needs the space. Below them a middle shelf at 18.5 x 6 in and a bottom shelf 3 in high take notebooks flat. Total capacity is 55 lbs across a 19.5 x 6.5 x 16.5 in frame weighing 9 lbs. White engineered wood keeps it discreet on a craft table or a study desk. Assembly is required.