Challenging Dot-to-Dot is jam packed with over 70 amazing puzzles, from 100 to 1,000 dots. Puzzles start easy, but get harder as you go along. Some of the dots go across the fold in the book and some of them have differently colored dots (solutions are in the back of the book, just in case you get stuck). Find buried treasure, surf the waves, or go on a dot-to-dot adventure! Many of the completed pictures would look even better colored in–so get your favorite colored pencils or pens and go to town! Every single picture has a time challenge for kids to conquer.