Här nedan följer den engelska referenslitteraturen om Agatha Christies liv och verk:

I listan blandas amerikanska och brittiska utgåvor.

Årtal okänt:

The Agatha Christie Centenary u.å.

1960-talet:

Agatha Christie. Mistress of Mystery 1967 (Amerikanska utgåvan)

Agatha Christie. Mistress of Mystery 1968 (Brittiska utgåvan)

1970-talet:

The Mysterious World of Agatha Christie 1975

Andy East's Agatha Christie Quizbook 1975

An Agatha Christie Chronology 1976

The Agatha Christie Mystery 1976

Agatha Christie: First Lady of Crime 1977 (Brittiska utgåvan)

Agatha Christie: First Lady of Crime 1977 (Amerikanska utgåvan)

The Mystery of Agatha Christie 1978

Orient Express. The Life and Times of the World's Most Famous Train 1978 (Amerikanska utgåvan)

Orient Express. The Life and Times of the World's Most Famous Train 1979 (Brittiska utgåvan)

The Bedside, Bathtub & Armchair Companion to Agatha Christie 1979

1980-talet:

The Agatha Christie Companion 1980 (Häftad)

The Agatha Christie Companion 1980 (Inbunden)

The Gentle Art of Murder. The Detective Fiction of Agatha Christie 1980

The Agatha Christie Who's Who 1980 (Brittiska utgåvan)

The Agatha Christie Who's Who 1980 (Amerikanska utgåvan)

The Agatha Christie Who's Who 1980 (Kanadensiska utgåvan)

A Talent to Deceive. An Appreciation of Agatha Christie 1980 (Brittiska utgåvan)

A Talent to Deceive. An Appreciation of Agatha Christie 1980 (Amerikanska utgåvan)

Agatha Christie The Art of Her Crimes. The Paintings of Tom Adams 1981 (Amerikanska utgåvan)

Tom Adams' Agatha Christie Cover Story 1981 (Brittiska utgåvan)

The Agatha Christie Crossword Puzzle Book 1981 (Brittiska utgåvan)

The Agatha Christie Crossword Puzzle Book 1981 (Amerikanska utgåvan)

The Great Detectives. Seven Original Investigations 1981 (Brittiska utgåvan)

The Great Detectives. Seven Original Investigations 1981 (Amerikanska utgåvan) 

Murder She Wrote. A Study of Agatha Christie's Detective Fiction 1982 (Häftad)

Murder She Wrote. A Study of Agatha Christie's Detective Fiction 1982 (Inbunden)

The Life and Crimes of Agatha Christie 1982 (Brittiska utgåvan)

Agatha Christie. A Biography 1984

The Agatha Christie Companion: The Complete Guide to Agatha Christie's Life and Work 1984 (Amerikanska utgåvan)

The Agatha Christie Companion: The Complete Guide to Agatha Christie's Life and Work 1985 (Brittiska utgåvan)

Agatha Christie. A Biography 1985 (Amerikanska utgåvan)

An A to Z of the Novels and Short Stories of Agatha Christie 1985 (Häftad)

An A to Z of the Novels and Short Stories of Agatha Christie 1985 (Inbunden)

The Life and Times of Miss Jane Marple 1985 (Amerikanska utgåvan)

The Life and Times of Miss Jane Marple 1986 (Brittiska utgåvan)

Agatha Christie's Cookery 1985

The New Bedside, Bathtub & Armchair Companion to Agatha Christie 1986 (Reviderad upplaga)

Agatha Christie 1986

A Talent to Deceive. An Appreciation of Agatha Christie 1987 (Reviderad och uppdaterad) (Amerikanska utgåvan)

A Tribute to Agatha Christie 1987

1990-talet:

Agatha Christie Trivia 1990

A Talent to Deceive. An Appreciation of Agatha Christie 1990 (Reviderad och uppdaterad) (Brittiska utgåvan)

The Life and Times of Hercule Poirot 1990 (Amerikanska utgåvan)

The Life and Times of Hercule Poirot 1990 (Brittiska utgåvan)

The Life and Crimes of Agatha Christie 1990 (Amerikanska utgåvan)

Agatha Christie's Devon. A Tour in Words and Pictures 1990

Agatha Christie: Murder in Four Acts: A Centenary Celebration of 'The Queen of Crime' on Stage, Film, Radio & TV 1990

Agatha Christie. The Woman and Her Mysteries 1990 (Amerikanska utgåvan)

The Agatha Christie Centenary Celebration Tour: Spider's Web 1990

Agatha Christie. The Woman and Her Mysteries 1991 (Brittiska utgåvan)

Reflecting on Miss Marple 1991

The Films of Agatha Christie 1993

The Poisonous Pen of Agatha Christie 1993

Black Sheep, Red Herrings and Blue Murder: The Proverbial Agatha Christie 1993 (Brittiska utgåvan)

Black Sheep, Red Herrings and Blue Murder: The Proverbial Agatha Christie 1993 (Amerikanska utgåvan)

The Lost Days of Agatha Christie 1995

Agatha Christie's Poirot. A Celebration of the Great Detective 1995

Exploring Agatha Christie Country 1996

What's Your Agatha Christie I.Q.? 1996

Agatha Christie A to Z. The Essential Reference to Her Life & Writings 1996

In the Footsteps of Agatha Christie 1997

Agatha Christie Woman of Mystery 1997

Agatha Christie. Writer of Mystery 1997

Agatha Christie and the Eleven Missing Days 1998

The World of Agatha Christie. The Facts and Fiction Behind the World's Greatest Crime Writer 1999 (Brittiska utgåvan)

The World of Agatha Christie. The Facts and Fiction Behind the World's Greatest Crime Writer 1999 (Amerikanska utgåvan)

The Life and Crimes of Agatha Christie 1999 (Reviderad och uppdaterad) (Brittiska utgåvan)

The Getaway Guide to Agatha Christie's England 1999

2000-talet:

The Complete Christie. An Agatha Christie Encyclopedia 2000 (Häftad)

The Complete Christie. An Agatha Christie Encyclopedia 2000 (Inbunden)

Who Killed Roger Ackroyd? The Mystery Behind the Agatha Christie Mystery 2000 (Brittiska utgåvan)

Who Killed Roger Ackroyd? The Mystery Behind the Agatha Christie Mystery 2000 (Amerikanska utgåvan)

The Life and Crimes of Agatha Christie. A Biographical Companion to the Works of Agatha Christie 2001 (Amerikanska utgåvan)

Agatha Christie and Archaeology 2001

Agatha Christie 2001 (Brittiska utgåvan)

Agatha Christie 2001 (Amerikanska utgåvan)

The Life of Max Mallowan. Archaeology and Agatha Christie 2001

Agatha Christie 2002

Agatha Christie's Tape Measure Murder and the Wallace Case 2003

Agatha Christie: A Reader's Companion 2004

Everyman's Guide to the Mysteries of Agatha Christie

The 8:55 to Baghdad: From London to Iraq on the Trail of Agatha Christie and the Orient Express 2004 (Brittiska utgåvan)

The 8:55 to Baghdad: From London to Iraq on the Trail of Agatha Christie and the Orient Express 2005 (Amerikanska utgåvan)

Miss Marple and All Her Characters 2006

Agatha Christie. Investigating Femininity 2006 (Brittiska utgåvan)

Agatha Christie. Investigating Femininity 2006 (Amerikanska utgåvan)

Agatha Christie The Finished Portrait 2006

Agatha Christie. Power and Illusion 2007 (Brittiska utgåvan)

Agatha Christie. Power and Illusion 2007 (Amerikanska utgåvan)

Agatha Christie. An English Mystery 2007

The Detective Novels of Agatha Christie. A Reader's Guide 2008

Agatha Christie 2009

Agatha Christie at Home 2009

Agatha Christie's Devon 2009

Agatha Christie's Secret Notebooks. Fifty Years of Mysteries in the Making 2009

The Official Guide to Agatha Christie in Devon 2009

2010-talet:

Agatha Christie's True Crime Inspirations: Stranger Than Fiction 2010

Duchess of Death. The Unauthorized Biography of Agatha Christie: Drawing on over 5000 Unpublished Letters, Documents and Notes 2010

Agatha Christie's Murder in the Making. Stories and Secrets from Her Archive 2011

Miss Marple: Christian Sleuth 2013

Poirot and Me 2013

The Agatha Christie Miscellany 2013

A Brief Guide to Agatha Christie 2014

A is for Arsenic. The Poisons of Agatha Christie 2015

Curtain Up: Agatha Christie - A Life in Theatre 2015

Dining Room Detectives. Analysing Food in the Novels of Agatha Christie 2015

Little Grey Cells. The Quotable Poirot 2015

Tom Adams Uncovered. The Art of Agatha Christie and Beyond 2015

Agatha Christie's Complete Secret Notebooks 2016 (Reviderad utgåva)

Agatha Christie's The Mysterious Affair at Styles in German and Dutch Translation: The Remarkable Case of the Six Poirots 2016

Queering Agatha Christie: Revisiting the Golden Age of Detective Fiction 2016

The Ageless Agatha Christie: Essays on the Mysteries and the Legacy 2016

Agatha Christie and Shrewd Miss Marple 2017

Agatha Christie's Golden Age 2018

Agatha Christie Goes to War 2019

Murder, She Said. The Quotable Miss Marple 2019

2020-talet:

Poirot. The Greatest Detective in the World 2020

Swigatha. A re-read of Agatha Christie 2021

The Murder of Roger Ackroyd by Agatha Christie. A Story Grid Masterwork Analysis Guide 2021