If you want to contact Mark you can simply email: info @ thinkingpractice.co.uk or ring 01642 606755.
You could also talk to him on Twitter, if that's your preference: @thinkinpractice. (Thinking Practice is too many letters, it's not a beat poetry affectation.)
You could also talk to him on Twitter, if that's your preference: @thinkinpractice. (Thinking Practice is too many letters, it's not a beat poetry affectation.)