“The LEGO MindStorms NXT 2.0 Discovery Book, by Laurens Valk; $30 from NoStarch Press, nostarch.com.
If you ever go to science fiction convention or a hobby show, you will usually see some amazing displays of what you can build with LEGO blocks. We don’t mean just buildings or busts of famous people; we mean operating toy trains, cranes, cars and robots. The book contains plans and instructions for making robots using the using the LEGO Mindstorms NXT 2.0 set. This costs around $280 but those who have it say they love it. The kit has parts, motors and – most important of all: a programmable logic block containing the microchips for controlling the robots.