Code girls: the untold story of the American women code breakers of World War II

The secret letters ; Introduction: "Your country needs you, young ladies". Part I. "In the event of total war women will be needed". Twenty-eight acres of girls ; "This is a man's size job, but I seem to be getting away with it" ; The most difficult problem ; "So many girls in one place"

Part II. "Over all this vast expanse of waters Japan was supreme". "It was heart-rending" ; "Q for communications" ; The forlorn shoe ; "Hell's half-acre" ; "It was only human to complain" ; Pencil-pushing mamas sink the shipping of Japan

Part III. The tide turns. Sugar camp ; "All my love, Jim" ; "Enemy landing at the mouth of the Seine" ; Teedy ; The surrender message ; Good-bye to Crow

Epilogue: The mitten

Afterword for the paperback edition

Reading group guide.