When a book is laid on a table for reading the pages at the beginning or end, it will not stay open flat on account of the difference in the thickness of the open parts. One person, doing a great deal of reading, uses a small card, with the corner cut out, which is placed under the side of the book having the smallest number of leaves, as shown.

Support for an Open Book 1024Support for an Open Book 1025Support for an Open Book 1026Some Conventional Designs for Cardcases

Ill: Some Conventional Designs for Cardcases