Adjustable book holder

An adjustable book holder, comprising:

• a horizontally disposed base including a pair of spaced side members, each side member having a first end and a second end, the first ends being interconnected by a transverse member;
• a pair of spaced legs, each including a lower end and an upper end, the lower end being movably and lockably attached to a respective one of the side members at its second end and disposed to extend upwardly therefrom.
• a frame having a pair of spaced tubes and an interconnecting upper bar, the tubes being aligned with and disposed to telescopically engage the upper end of the legs;
• an adjustable stop movably attached in frictional engagement with each of the legs, each stop being disposed to contact a respective tube when it telescopically engages the leg;
• a planar book support having a front surface, a rear surface, a top edge, a bottom edge, and lateral edges;
• an adjustable clamp, the clamp being rigidly attached to the rear surface of the book support and movably and lockably attached to the upper bar of the frame;
• a bottom support ledge adjustably attached to the upper bar of the frame by a pair of spaced threaded rods and disposed to extend below the bottom edge of the book support;
• a pair of spaced adjustable top retainers attached to the upper bar of the frame, each top retainer having an upper hooked end disposed to extend below the bottom edge of the book support;
• and above the top edge of the book support
• a pair of spaced, adjustable top retainers attached to the upper bar of the frame, each top retainer having an upper hooked end disposed to extend above the top edge of the book support, each side retainer disposed to extent out from a respective lateral edge of the book support and being biased inwardly.