In Agatha Christie’s Marple: Expert on Wickedness,‘Agathologist’ Dr Mark Aldridge looks at nearly a century of St Mary Mead’s most famous resident and uses his own detective skills to uncover new information about Miss Jane Marple’s appearances on page, stage, screen and beyond.

Drawing on a range of material, some of which is newly discovered and previously unpublished, this book explores everything about Miss Marple, from her origins in a series of short stories penned by Christie, to the recent bestselling HarperCollins collection Marple: Twelve New Stories.

This accessible, entertaining and illustrated guide to the world of Miss Marple pieces together the evidence in order to tell you everything you need to know about the world’s favourite female detective.

This book tells his story decade-by-decade, exploring his appearances not only in the original novels, short stories and plays but also across stage, screen and radio productions.

Poirot has had near-permanent presence in the public eye ever since the 1920 publication of The Mysterious Affair at Styles. From character development, publication history and private discussion concerning the original stories themselves, to early forays on to the stage and screen, the story of Poirot is as fascinating as it is enduring.

Based on the author’s original research, review excerpts and original Agatha Christie correspondence, Poirot: The Greatest Detective in the World is a lively and accessible history of the character, offering new information and helpful pieces of context, that will delight all Agatha Christie fans, from a new generation of readers to those already highly familiar with the canon.