Book excerpt: Readers are introduced to the sneaky world of spies in this hands-on guide to espionage. From secret codes to invisible messages, they’re able to create and use impressive superspy tools all on their own. Clear and focused instructions, along with safety tips, allow readers to independently tackle each project. In addition, lists of materials are provided before each activity so readers can prepare for their various missions, and vibrant photographs appeal to visual learners and reluctant readers. This high-interest topic is sure to be a big hit with superspies-in-training and DIY superstars!