Sniffer Dogs, , North Star Editions, Elisabeth Norton,Animals/Dogs,JUVENILE NONFICTION, working dogs; dog training; how dogs smell disease; tracking and trailing; drug and bomb detection; truffle hunting; airport security animals; nosework competitions; target scent; hi-lo books; educational nonfiction for reluctant readers; canine handlers; bloodhounds,, Dogs at Work, United States, en-UShttps://northstareditions.comworking dogs; dog training; how dogs smell disease; tracking and trailing; drug and bomb detection; truffle hunting; airport security animals; nosework competitions; target scent; hi-lo books; educational nonfiction for reluctant readers; canine handlers; bloodhounds, [BLURB],[CITY],,books, ebooks, biblet, Book2look