I received this book as an early Christmas present, because I had enjoyed Aslet's earlier "Landmarks" book. Readers of that book won't be surprised at the breadth of erudition, quirkiness, unexpectedness etc, all managing somehow to be thoroughly entertaining as well. I wasn't sure that a countrywide selection of villages would offer similar opportunities, but I was wrong about that. The subtitle says: "the 500 villages that made the countryside", which is a big claim. But it's a fair one, I think. You really do begin to see, as village after village is offered to your eye, how their individual stories add to a much larger, over-arching story of the country and the countryside.
Don't try to take it with you on your travels: much better keep it by your bedside, to read a little every evening. As for villages you actually visit, you can use the book's individual entries to illuminate them equally well before or after you trip.
This book will be a long-term friend.