Dogs are popular pets. But some dogs do much more than play fetch. From herding on farms to helping in classrooms, working dogs have many different jobs. Search and rescue dogs sniff out people buried in snow. Police dogs chase and catch criminals. Therapy dogs offer support to hospital patients. Dogs are learning new jobs all the time. Discover how working dogs use their unique skills to make life better for people. Take a look inside White Lightning Nonfiction, a hi-lo nonfiction series for students in the middle grades. Mature, high-interest topics pull in readers and engage them with interesting information; full-color photographs and illustrations; detailed graphic elements including charts, tables, and infographics; and fascinating facts. A 20-word glossary is included for vocabulary support.