As the Observer's restaurant critic, Jay Rayner has put his stomach to good use over the past five years. Here, though, he reveals how the job has also given him food for thought.
Peter Parker's searching, yet sympathetic, biography of Christopher Isherwood captures the contradictions of the complicated writer taking in 1930s Berlin and his time in Hollywood. Charming, gay and egotistical - he also wrote very creative diaries
Clea Koff shows how forensic science can shed light on human rights abuses in The Bone Woman. Uncovering the truth can be a painful process, says Phil Whitaker
James Joyce's troubled daughter spent much of her life in institutions. Carol Loeb Schloss brings Lucia Joyce back from the margins with a new biography
For more than 40 years film-maker Ken Loach has been an unswerving champion of the British working class. Anthony Hayward traces his devotion to the cause in his new biography, Which Side are You On?
Alan Strachan's biography of Michael Redgrave, Secret Dreams, restores one of Britain's finest 20th-century actors to his rightful place, says Simon Callow
Emma Gerstein deploys meticulous scholarship in her warts-and-all account of the Mandelstams, Moscow Memoirs. A literary spat is always entertaining, says Virginia Rounding
Despite hostility from male critics in her native China, Xiaolu Guo's harrowing, intimate novels have made her one of the country's most successful literary exports. She tells Laura Barton why she came to Britain.