Gr 3–6—This attractive series will engage young science fans and broaden their horizons about daring careers. Each book defines its featured vocation(s), provides examples of scientists in the field, offers information about the topic being researched (volcanoes, fossils, etc.), and relays information about unusual locations to work and the types of jobs being performed under extreme conditions. For example, there are astronomers called "Cubers" who work in severely cold temperatures at the IceCube telescope in the South Pole. The books are large in size, format, and font and include nicely reproduced, captioned photos; sidebars of additional information; and diagrams. The vocabulary is rather technical, as the topics demand, but the end matter includes a glossary for support.