spies

Covers history of Civil War espionage for the Union and Confederate armies.

The two young detectives solve a mystery involving a top secret government agency and a world-famous spy who wishes to defect to America.

Describes the activities of famous spies, Resistance movements, and saboteurs and discusses how they helped turn the tide of the Second World War.

Presents the lives of courageous women who served as spies for the North and South during the Civil War, including Belle "The Siren of the Shenandoah" Boyd, Elizabeth "Crazy Bet" Van Lew, and Harriet Tubman.

This book discusses different methods of secret communications used by spies, such as Morse code, the Enigma machine, the Navajo language, and digital steganography, as well as career information on espionage.

This book explores famous and infamous spies in history, including examples of female spies, child spies, family spy rings, and animal spies.

Seventh-grader Georges adjusts to moving from a house to an apartment, his father's efforts to start a new business, his mother's extra shifts as a nurse, being picked on at school, and Safer, a boy who wants his help spying on another resident of their building.

After Ruby's house is ransacked, she receives odd phone calls and a too-good-to-be-true "household manager" arrives. These events must be related, but how? Includes solutions to puzzles.

This book examines some of the equipment and methods spies use, including miniature cameras, closed-circuit television, disguises, and more.