A calendar comprises a planar frame, one or more ring sections, and an insert section. The planar frame of a first dimension has an inner surface portion and an outer surface portion and configured to be folded along a central portion on both directions. The one or more ring sections are installed along the central portion of the planar frame. The insert section has a second dimension and attached to the planar frame through the one or more ring sections on the inner surface portion of the planar frame, so as to be enclosed by the planar frame or disposed on a surface of the planar frame. The first dimension is larger than the second dimension so that the planar frame encloses the insert section with specific margins around one or more edges of the insert section. Both ends of the planar frame are configured to be connected.

A photoluminescent writing pad, wherein a) the writing pad is fastened to a back cover of a notebook and arranged to be turned to a writing pad of a page of the notebook, b) the writing pad is arranged to gleam through a writing page thus enabling reading and writing in darkness and c) the writing pad has notches for accommodating a spiral wire, especially spiral or wire or similar binding, of a notebook for securing the writing pad under the page of the notebook to function as an interleaf.

A photoluminescent writing pad, wherein a) the writing pad is fastened to a back cover of a notebook and arranged to be turned to a writing pad of a page of the notebook, b) the writing pad is arranged to gleam through a writing page thus enabling reading and writing in darkness and c) the writing pad has notches for accommodating a spiral wire, especially spiral or wire or similar binding, of a notebook for securing the writing pad under the page of the notebook to function as an interleaf.

A book has a front cover having a first edge which is unconnected, and an opposing second edge which is connected to a spine. A back cover has first edge which is connected to the spine and an opposing second edge which is connected to flexible joint or fold-line. The book has a third cover having a first edge which is connected to the flexible joint, that couples the third cover to the back cover, and an opposing second edge which is connected to binding. The front cover is configured to fold back about the spine to retain the third cover proximal the second edge of the third cover to retain the book in a propped-up position for reading. A page holder slides along the left and right sides of the third cover and has an opening that allows a page to be pushed therethrough.

A book has a front cover having a first edge which is unconnected, and an opposing second edge which is connected to a spine. A back cover has first edge which is connected to the spine and an opposing second edge which is connected to flexible joint or fold-line. The book has a third cover having a first edge which is connected to the flexible joint, that couples the third cover to the back cover, and an opposing second edge which is connected to binding. The front cover is configured to fold back about the spine to retain the third cover proximal the second edge of the third cover to retain the book in a propped-up position for reading. A page holder slides along the left and right sides of the third cover and has an opening that allows a page to be pushed therethrough.

The present invention relates to a flexible and durable bookbinding and to methods for making bound books. More specifically, the present invention relates to books that may withstand substantial and repeated perpendicular flexure along their spine. Among other advantages, these books demonstrate improved resistance to wear and tear and normal usage to remain intact.

The present disclosure provides a novel notebook system in which stacks of one-side-bound inner paper sheets are replaced, wherein a plurality of pockets are formed at a plurality of positions in an inner face of an outermost cover sheet, a first or last paper sheet of the stack of one-side-bound inner paper sheets is removably inserted into the pocket selected by the user, and, therefore, the handwriting direction or position may be freely changed according to the user's selection. According to the present disclosure, the user can freely change the position of the stack of one-side-bound inner paper sheets, and thus can make notes or handwriting in a convenient way. When the stack of one-side-bound inner paper sheets are completely used, the stack may be replaced with a new stack of one-side-bound inner paper sheets, which can save money and waste material.

The present disclosure provides a novel notebook system in which stacks of one-side-bound inner paper sheets are replaced, wherein a plurality of pockets are formed at a plurality of positions in an inner face of an outermost cover sheet, a first or last paper sheet of the stack of one-side-bound inner paper sheets is removably inserted into the pocket selected by the user, and, therefore, the handwriting direction or position may be freely changed according to the user's selection. According to the present disclosure, the user can freely change the position of the stack of one-side-bound inner paper sheets, and thus can make notes or handwriting in a convenient way. When the stack of one-side-bound inner paper sheets are completely used, the stack may be replaced with a new stack of one-side-bound inner paper sheets, which can save money and waste material.

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.

A pocket device including a major panel and a pocket panel coupled to the major panel and defining a pocket with the major panel. The pocket panel has a lateral dimension greater than a lateral dimension of the major panel at at least one position to thereby define a laterally-extending gap therebetween, which enables expansion of the pocket.