Excellent for unplugged playtime and STEM learningLEGO kits come with instructions for building just a few models. The Build It! series supplements the fun with hundreds of new ideasEasy-to-follow, step-by-step instructions take the guess work out of buildingThe Build It! series feature the most common parts found in LEGO sets, so that kids who already have lots of LEGO parts at home can still use the booksGender neutral (much of the competition seems targeted to boys) Kids can make many different models from one kit-they don't need to take apart what they created before going onto the next model in the diorama