Color by Numbers for Kids: Happy Animals for kids ages 3 and up is lots of fun and a great way for kids to learn colors. This book contains color-by-numbers pictures of happy animals such as lions giraffes bears etc. doing fun activities like skateboarding and parasailing. Coloring by numbers is a fun activity for kids. Color by Numbers for Kids: Happy Animals for kids ages 3 and up is lots of fun and a great way for kids to learn colors. This book contains color-by-numbers pictures of happy animals such as lions giraffes bears etc. doing fun activities like skateboarding and parasailing. Coloring by numbers is a fun activity for kids; they are sure to enjoy this book with hours of coloring fun. Color by Numbers for Kids: Happy Animals is a large print book with easy-to-read pages and numbers. Each color-by-number puzzle contains its own practice page. A color key is also included on the back cover to make it easier for your child to recognize and learn their colors! Pages are suitable for crayons and colored pencils.