Mark whole class sets of books with ease using this spreadsheet. The purpose of this spreadsheet is to eliminate most of the tedium in book marking. Simply input up to 15 different targets into the system, and for each child assign 3-5 different numbers. These numbers are used to automatically generate customised, individual, and detailed feedback sheets for each child in the class. Never write the same thing out 30 times again! I have found that I can mark multiple class sets of books in under an hour using this system, and I am able to give highly detailed feedback and targets whilst doing so.