◼ The Callan File: The Definitive Guide, written by Robert Fairclough and Mike Kenwood, is published in September, priced £19.99. This book examines the 1967-72 TV series Callan, featuring interviews with actors and writers who contributed to the spy drama – many of whom also have Doctor Who connections, such as Robert Banks Stewart, Hugh Walters, Julian Glover, Russell Hunter and William Squire. For more details, visit www.quoitmedia.co.uk