I know I always give Simon Barnes 5 stars, just because he's Simon Barnes and a wonderful writer - but how anyone can read his books and not be wildly enthusiastic about nature, I can't imagine.
This book will also appeal to lovers of fantasy, particularly Narnia and Harry Potter, which are much quoted from. Barnes gives us spells to fill the world with wonderful wildlife - well, the wildlife is already there, it's just a question of opening our eyes and ears to perceive it.
We could buy a bat detector or a moth trap, but most of the "spells" are simple - learn a few basic birdsongs, watch for bats on a summer evening, observe the butterflies in the garden and wonder - and look up - and learn. Then as if by magic, you will have become a naturalist.
I spend most of my time in a Barnes book with a silly, happy grin on my face, or saying "Yes!" I recommend a regular dose of him for anyone feeling downcast or depressed.