Invited experts and tutors come and talk to us about how to do things, and how to do them better. Our four-round competition consists of two rounds where experts give us advice, inspiration and instruction and then return to give their views on our endeavours. The other two rounds use external qualified judges who give constructive criticism of our submitted images. Our experts have included Honey Salvadori, Marriane Holm Hanson, Slavek Staszczuk, Simon Ellingworth, Nigel Wilson, Sarah Leigh Lewis and Michael Harding.