Author and TV Historian Oliver Crocker's debut book, "All Memories Great & Small" was released as part of the 100th birthday celebrations for the real James Herriot, Alf Wight. This critically acclaimed companion book to the classic BBC series was expanded in 2021, featuring 75 exclusive interviews with cast and crew, including stars Christopher Timothy, Peter Davison, Carol Drinkwater and the late great Robert Hardy - plus dozens of guest stars and members of the production team.

In 2020, his second book “Witness Statements: Making The Bill (Series 1-3)” was published, featuring interviews with 40 cast and crew about the early days of the popular police drama "The Bill". Since 2017, Oliver has also presented "The Bill Podcast", featuring over 80 episodes of in-depth interviews with the stars of “The Bill”. The Podcast has been played over 200,000 times and been nominated for three British Podcast Awards.

Prior to his work as an author, Oliver spent the first decade of his career working in TV Production and Film Marketing. His television credits include three series as a Researcher on ITV’s “This Morning”, followed by four years producing the DVD special features for dozens of feature film releases, including "The Hatton Garden Job", "The Limehouse Golem" and the 2016 "Dad's Army" remake, plus the classic BBC police drama series “Dixon of Dock Green” and “Z Cars”.