My earliest reading memory
I read The Lord of the Rings by JRR Tolkien at seven, in my bedroom in the deep west of Cornwall. I secretly believed that Rivendell was based on that house, which it clearly wasn’t.
My favourite book growing up
Impossible. I’m inconstant, so it was whatever I was reading at the time. Let’s say Finn Family Moomintroll, which is the most perfect of Tove Jansson’s lovely (and occasionally frankly terrifying) Moomin books.