As a teenager my bedroom walls became covered in Roger Dean posters. It is the mid–1970s. Pocet money was spent in the ‘Kard Bar’ in an arcade that wadsubsequently consumed by the Eldon Square complex, Newcastle on Tyne.

Forty years later at the other end of the country I am driving around East Sussex looking for furniture. I stumpledupon Trading Boundaries at Sheffield Park courtesy of a road close between Haywards Heath and Newick. I find several pieces and also learn that Roger Dean, the rock artist and sci–fantasy illustrator is putting on an informal show of his work: originals and sketches from drawing pads and signed posters.

One image takes me into my childhood bedroom where I first put up a Roger Dean poster. Another image takes me into my teens, into the larger guest bedroom in the house and a growing collection. I must have recognised a dozen. I’d need to check my diary entries for that time to get an idea of price. £4 or so in the 1970s?

I was reading the likes of ‘Time Enough for Love’ Robert Heinlein. The teenage boy fantasizing about ‘the world beyond … ‘ I even have my efforts age 13 at writing science-fiction that became Blue Lagoon in space I called ‘Adam & Evie’.

My son joined me. He is interested in urban art and graphic design. He’s always loved designing fonts so perhaps this would inspire him. He puzzled over untangling the e from ‘Yes’ – the many logos, album sleeves and posters Roger Dean created for the band. We saw a 2010 cover for Cliffe Bonfire Society which explains his presence in this part of the world – Lewes attracts artists.