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A Taste for Treason

Jeffrey, Andrew
A Taste for Treason
When Mary Curran became suspicious of hairdresser Jessie Jordan's frequent trips to Nazi Germany in 1937, she could not have known that she would become one of the world's most successful amateur spycatchers. This is her untold true story, the story of how a Nazi spy's letter, intercepted in Scotland, broke spy rings across Europe and America.

CHF 26.90

Mastering Numbers

Jeffrey, Andrew
Mastering Numbers
The perfect antidote to numbers-phobia, this clear, concise guide explains everything you need to know about arithmetic, fractions, statistics, probability, algebra and geometry.We all use numbers every day, yet many people are uncomfortable with them, finding them daunting and difficult. Others treat numbers as a practical tool they can handle quite well, while failing to appreciate their most amazing qualities.This book is the antidote to nu...

CHF 18.50