Behind the Sofa: Celebrity Memories of Doctor Who

 was a reference book in which over 100 celebrities discussed early memories of being a Doctor Who fan. It was edited by Steve Berry and first released in 2012, with an expanded edition published the following year to celebrate the show's 50th anniversary.

Publisher's summary
A man is the sum of his memories. A Time Lord even more so. Behind The Sofa is a collection of over 100 celebrity memories of Doctor Who, compiled in aid of Alzheimer's Research UK. Steve Berry decided to undertake this project in memory of his mother Janet, who suffered from Alzheimer's in her final years and passed away in 2009. Contributors include comedians Al Murray, Stephen Merchant, and Bill Oddie; actors Lynda Bellingham, Nicholas Parsons, and Rhys Thomas; writers Neil Gaiman, Jenny Colgan, Jonathan Ross, and Charlie Brooker; politicians Louise Mensch and Tom Harris and journalist Steve O'Brien. In addition, there is input from a number of the writers, actors, and production staff who were involved in creating Doctor Who stories new and old.

Subject matter
The book is comprised of many entires written by British celebrities, and those who have either appeared in, or been involved with the show itself.

Contributors include (2013 edition):
 * Rebecca Wood - Chief Executive, Alzheimer's Research UK (Foreword)
 * Steve Berry - Editor (Preface)
 * Sir Terry Pratchett - (Introduction)
 * Chris Tarrant
 * Ian McMillan
 * Tony Lee
 * Josie Long
 * Toyah Wilcox
 * Gareth Roberts
 * Gideon Defoe
 * Javier Grillo-Marxuach
 * Michael Moorcock
 * Michelle Duncan
 * Nicholas Briggs
 * Richard Madeley
 * Richard Marson
 * Alastair Reynolds
 * Alexei Sayle
 * Andrew Cartmel
 * Gareth Jenkins
 * Jamie Anderson
 * Jessica Martin
 * Michael Grade
 * Richard Briers
 * Gary Russell
 * Toby Young
 * Bill Oddie
 * Tara Newley
 * Richard Herring
 * Katy Manning
 * John Challis
 * Kerry Wilkinson
 * Rufus Hound
 * Chris Limb
 * Jeremy Limb
 * Jenny Colgan
 * Richard Freeman
 * Simon Guerrier
 * Emma Freud
 * Nick Bateman
 * Ed Petrie
 * Shaun Dingwall
 * Tom Harris
 * Ben Aaronovitch
 * Eric Wallace
 * Gary Delaney
 * Pat Galea
 * Nicola Bryant
 * Mark Millar
 * Stephen Merchant
 * Andrew Harrison
 * Kristen Hersh
 * Bob Fisher
 * Roland Rat
 * Bernard Cribbins
 * Ingrid Oliver
 * John Leeson
 * Sarah Ann Kennedy
 * Sophia Myles
 * Christopher H. Bidmead
 * David J. Howe
 * Robin Ince
 * Clayton Hickman
 * Murray Gold
 * Chris Chibnall
 * Sophie Aldred
 * Jon Peake
 * Tom Pearcy
 * Adam Roberts
 * Neil Gaiman
 * Saul Nasse
 * Jonathan Morris
 * Stuart Flanagan
 * Dave Chapman
 * David Quantick
 * Richard Coles
 * Nicholas Parsons
 * Graham Duff
 * Steve Gallagher
 * Mark Littlewood
 * Al Murray
 * Louise Mensch
 * Michael Legge
 * Philip Plait
 * Peter Howell
 * Huw Turbervill
 * Paul Cornell
 * Andy Nyman
 * Toby Hadoke
 * Paul Putner
 * Richard Wiseman
 * Tracy Ann Oberman
 * Sam Watts
 * Peter Anghelides
 * Jon Culshaw
 * Janet Fielding
 * Patrick Chapman
 * Iain Lee
 * Wincey Willis
 * Tom Reynolds
 * Johnny Candon
 * Sarah Greene
 * Charlie Brooker
 * Nev Fountain
 * Carol Decker
 * Mitch Benn
 * Amanda Lawrence
 * Andrew Smith
 * Luke Hyams
 * Matthew Sweet
 * Una McCormack
 * Lynda Bellingham
 * Terrance Dicks
 * Frances Barber
 * James Moran
 * David Bradley
 * Debbie Chazen
 * Courtland Lewis
 * Rick Wakeman
 * Jeremy Dyson
 * Paul Hartnoll
 * Mal Young
 * Julian Glover
 * Jonathan Ross
 * Angelica Bell
 * Marc Platt
 * Charlie Higson
 * Jason Arnopp
 * Adam Hussain
 * Caroline Morahan
 * Kim Lakin-Smith
 * Michael Underwood
 * Jo Whiley
 * Conor McNicholas
 * Jacqueline Rayner
 * David Hankinson
 * Chris Donald
 * Chantel Shafie
 * Jack Thorne
 * Gareth Jones
 * Boyd Hilton
 * Tom Goodman-Hill
 * Paul Whitehouse
 * Anneke Wills
 * Paul Scoones
 * Jason Flemyng
 * Paul Magrs
 * Hayden Black
 * Steve O'Brien
 * Bernard Holley
 * Daniel Blythe
 * Rhys Thomas
 * Ben Lawrence
 * Martina Cole
 * Richard Dinnick
 * James Goss
 * Paul J Salamoff
 * Lindsay Duncan
 * Mat Irvine
 * Polly Adams
 * Scott Lynch
 * Sean Williams
 * Simon Furman
 * Stephen Baxter
 * Konnie Huq
 * Hugh Bonneville
 * Iain Morris
 * Steve Cole
 * Paul McAuley
 * Bonnie Langford
 * Mike Carey
 * Michael Kibble-White

Notable features
The book was originally funded through crowd-funded preorders, and all profits are donated to Alzheimer's Research UK.