It's been a busy week - last night Laura appeared on The One Show couch with Twiggy (pictured) and Who Do You Think You Are? creator Alex Graham to celebrate the show's 100th episode, which aired on BBC1 at 9pm. Laura also featured in Twiggy's programme, which is available on BBC iPlayer until 7th November 2014. Read Laura's top tips for starting your own family history research on The One Show's Facebook page. Today, Laura will be heading over to the Who Do You Think You Are? Magazine forum between 2pm-3pm to answer readers' questions about criminal ancestors. Join the thread here.

The 11th series of Who Do You Think You Are? is back on our screens, exploring the family history of actress Julie Walters; comedian and actor Billy Connolly; star of British Bake Off Mary Berry; acting legend Brian Blessed; actress Sheridan Smith; the man behind the hugely successful Mrs Brown’s Boys, Brendan O’Carroll; actress Tamzin Outhwaite; presenter and DJ Reggie Yates; actor Martin Shaw; and model and actress Twiggy. This series includes the show's 100th episode, and Who Do You Think You Are? Magazine has asked lead genealogist Laura Berry to share her tips on how the team uncovers all those fascinating stories. Read her guide to getting started at www.whodoyouthinkyouaremagazine.com/getting-started/starting-your-family-history