This is one in a series of KnowHow activity books aimed at children between the ages of seven and twelve. Other books in the series offer ideas on experiments, paper fun, detection, jokes & tricks, and action toys.

A mystery story tests readers' imaginations while providing insight into the world of police detectives.

An insider's tour of the past half-century's espionage technologies also recounts some of the CIA's most secretive operations and how they have been performed using state-of-the-art spy instruments.

“Powerful, laden with emotion, and smartly written.” —Brandon Sanderson, author of Mistborn and The Way of Kings A brilliant historical fantasy novel from acclaimed author Mary Robinette Kowal featuring the mysterious spirit corps and their heroic work in World War I. Ginger Stuyvesant, an American heiress living in London during World War I, is engaged to Captain Benjamin Harford, an intelligence officer. Ginger is a medium for the Spirit Corps, a special Spiritualist force. Each soldier heading for the front is conditioned to report to the mediums of the Spirit Corps when they die so the Corps can pass instant information about troop movements to military intelligence. Ginger and her fellow mediums contribute a great deal to the war efforts, so long as they pass the information through appropriate channels. While Ben is away at the front, Ginger discovers the presence of a traitor. Without the presence of her fiancé to validate her findings, the top brass thinks she's just imagining things. Even worse, it is clear that the Spirit Corps is now being directly targeted by the German war effort. Left to her own devices, Ginger has to find out how the Germans are targeting the Spirit Corps and stop them. This is a difficult and dangerous task for a woman of that era, but this time both the spirit and the flesh are willing... Other Books Forest of Memory Glamour in Glass Of Noble Family Shades of Milk and Honey Valour and Vanity Without a Summer At the Publisher's request, this title is being sold without Digital Rights Management Software (DRM) applied.

The number one bestselling author of Agent Zigzag and Operation Mincemeat exposes the true story of the D Day Spies.

Illustrated with specially commissioned photography and archive material, a guide to the world of espionage covers everything from the daily life of a special agent to the complex world of international agencies.