Literary Agent (World) signed with Clare Conville of C&W Agency. You can contact Clare Conville via this email.
Speaking (North America) bookings are all done through Blue Flower Arts. They can be contacted at +1 845 677 8559 or you can fill in an initial enquiry form about a speaking event with them here.
For all other enquiries, you can fill in the contact form here. Giving ideas of dates, times, fees, travel etc. will help.