Electronic Brain Games: Crosswords : Electronic Brain Games: Crosswords is part of a series of interactive books that helps you exercise your brain regularly to keep it in tip-top shape. You need a Brain Games interactive reader to engage Crosswords. The reader, an optic pen that recognizes text and images on the book pages, is SOLD SEPARATELY as part of a package that also comes with the interactive books Brain Training and Picture Puzzles, plus a set of ear buds. Crosswords presents a time-honored puzzle format in an electronic environment that will please crossword puzzle veterans and help out novices. Each puzzle is presented in two forms on adjacent pages: As a standard crossword in which you can fill in the blanks using the mechanical pencil on one end of the Brain Games reader. As a puzzle that you can interact with using the Brain Games reader to verify your answers or use as an answer key. Point the optic reader to the crossword square that is stumping you, and hear the answer through the ear buds. Or, if you think you know the answer, point to it on the Verify bar and then hear whether you are correct. Electronic Brain Games: Crosswords offers 61 crossword puzzles at five levels of difficulty. The book is spiral-bound and easy to handle, regardless of whether you're at home, traveling, or waiting in line.