You are looking on one book 8 1/4"by10"284page softcover copy of "GRAPHING CALCULATORMANUAL"by Judith A. Penna with the assistance of Daphne A. Bell, printed in2001.This item is in good condition with a little bit of soiling and rubbing of the covers,all pages are clean and tight.Chapters include:the TI-83, and TI-83+ graphics calculator, the TI-85 graphics calculator,the TI-86 graphics calculator, and much, much more. Thanks for Looking.A24***Powered by eCRATER