Patent ID: 7731147

Claim:
A bookholder, comprising: a pair of cover members for forming an inner space to receive a book therein when being folded and for supporting both sides of the book when being unfolded; a supporting unit combined between the pair of cover members so as to be folded with respect to the each cover member; a string longitudinally installed inside the supporting unit to fix the spine of the book; and at least one clamp installed inside the cover member so as to fix the pages of the received book, wherein the clamp has a lifting unit for selectively fixing a height of the clamp depending on a thickness of the book, wherein the lifting unit comprises a first block, and a second block in which the first block selectively moves up and down, wherein the first block includes a hooking protrusion at one side, and wherein the second block has teeth which is formed along the inner sidewall of the second block so as to engage with the hooking protrusion selectively.