Our talent library
GMC is proud to represent over 100 authors, experts, speakers, and thought leaders across the non-fiction industry.
Dr Mark Williamson
Dr Mark Williamson in the co-founder and Director of Action for Happiness - a charity that promotes a happier and more caring society.
He has a PhD in Engineering from the University of Bristol and an MBA from IMD business school in Switzerland, where he received the President’s Award.
In 2022 Mark was awarded an additional Honorary Doctorate in recognition of his work with Action for Happiness.
Chris Wild
Chris Wild is an author, keynote speaker and avid campaigner for young people in care.
He has appeared across numerous media channels such as the BBC , Channel 4 and ITV.
Dr Claire Plumbly
Dr Claire Plumbly is a HCPC-Registered Clinical Psychologist specialising in trauma and burnout.
Emma Dunwoody
Emma Dunwoody is a qualified Master Coach and is one of the world’s top experts in Human Design.
Helen Villiers
Helen Villiers is a Psychotherapist specialising in narcissism, emotional abuse and neurodivergence.
Katie McKenna
Katie McKenna is an accredited Psychotherapist specialising in emotional abuse and childhood trauma.
Sarah de Lagarde
Sarah de Lagarde is a motivational speaker, disability advocate and double amputee.
Heather Darwall-Smith
Heather Darwall-Smith is one of the UK’s top sleep specialists and psychotherapists.
David Vaux
David Vaux is an ex-firefighter and is now one of Britain’s leading Osteopaths, specialising in strength-focused activity in older age.
Helen Marie Sandle
Helen Marie is Helen Marie is a therapist specialising in self-work, anxiety, trauma and relationships.
Lizzie Waterworth
BAFTA nominated voice actor, including the voice of TV’s Horrid Henry. A children’s author and inspirational speaker to younger audiences on how to feel and sound more confident when speaking in front of people.
Jenny Tschiesche
Nutritionist and Sunday Times bestselling cookbook author & expert on air fryers.
Azmina Govindji
Award-winning dietitian, consultant nutritionist, international speaker and author.
Emma Hollingsworth
Award-winning blogger, plant-based and gluten-free baker. Founder of baking brand Mrs Hollingsworth’s.