A world of knowledge at your fingertips! Four more exciting titles in this excellent series. Each book has a fully interactive CD-ROM and includes exciting internet links to take children to the most interesting and informative sites on the net. 'Knowledge Master' is a complete, user-friendly multimedia package that's ideal for home, school - or just for fun!
This is Book 1 in the Knowledge Masters S. Series. See all Knowledge Masters S. books here.
See More Puzzle books
No one has written a review for 'Knowledge Masters: Optical Illusions'
Why not be the first to share your opinion?
