It is an interesting, varied, not-your-run-of-the-mill activity book, with cute illustrations. A caveat is a large scatter of difficulty among activities, which created frustration when activities could not be figured out (it would've been better to mark activities with level of difficulty so children knew when they were approaching the most difficult ones), and some unusual and rather idiosyncratic answers that were difficult even for adults to come up with or explain. Overall, good fun.

Fun and quick to make, fabric balls are great for indoor play, for home-decor accents, for holiday ornaments, or as soft and cuddly toys for babies. The ten designs featured in this book include complete step-by-step directions and color diagrams to show how to construct and color each project. Easy-to-use templates take the math out of even the most complex of the designs, enabling crafters to create dazzling patchwork patterns that match up beautifully.

Raymond Smullyan is a unique set of personalities that includes a philosopher, logician, mathematician, musician, magician,humorist, writer, and maker of marvelous puzzles. Because he is a skillful writer and humorist, he enjoys presenting his puzzles in narrative forms that often parody great works of popular fiction.