'Just name one book as your No 1. favourite.'
Could you isolate one title only?
Sometimes I'm interviewed about favourite food, colours, writers or the one book I'd choose for a desert island.
Hard choice.
Much depends when you became acquainted with the mind behind that story in that book. And often reading goes in personal 'fashions' or genres. I've been through espionage, crime, mystery, adventure travel, satire, politics, self-help, biography and now moving into history.And that's just in my reading, let alone research for my own writing.
If pressed, I say 'George Orwell's 'Animal Farm' because of the multi-layerered political satire which is also accessible for younger readers.
If the question is meant to be personal about a book I've written, I say "The one I'm working on at present.'
Or 'Writing a Non Boring Family History' because of the boredom eliminated.
Or if it really is a hypothetical desert island, maybe a 'how to' manual.
Writing A Non Boring Family History