of variables, curious readers can explore coding concepts with this engaging title. Introductory text about each concept is paired with hands-on activities such as making a robotic hand from cardboard and creating a function for a room-cleaning robot. Follow-ups after each activity ask readers to think critically, while extra challenges allow readers to test each concept in another way. The robots in this title are unplugged, but they can help eager readers develop skills that could someday lead to working with real robots!