The invention relates to a book having a multi-part binder and at least one sheet of paper in the binder. The binder has a spine, a front-side book cover pivotable around a first axis, and a rear-side book cover pivotable around a second axis. A holding apparatus detachable mounts the at least one sheet on the binder.At least one book cover is embodied in multi-part fashion, encompassing a receiving surface fastened articulatedly on the spine and pivotable around the corresponding pivot axis. A replaceable cover element is detachably mountable on the receiving surface. At least one book cover comprises a receiving surface, fastened articulatedly on the spin and pivotable around the corresponding pivot axis, as well as a cover element. The receiving surface and the cover element are integral and the book cover is replaceable thanks to a detachable mounting of the receiving surface on the spine element.