Everyone knows Sheffield is built on hills. Seven of them. Knowing it is one thing, feeling it another. 
 
Invited to be ‘in conversation’ with Tony White at Site Gallery, for an event that is part of Strong Language, curated by Tim Etchells, which in turn is part of the Off the Shelf festival, I decide to travel in the direction of Sheffield by train and alight at Dore & Totley, on the outskirts of the city, and walk in, visiting two second hand bookshops on the way. It’s a good plan but...