To give it it's full title... The Hidden Life of Trees: What They Feel, How They Communicate-Discoveries from a Secret World.
Wow - what a book, and what a difference it made to an incredibly long and usually boring journey on the M1 north for work (Audible rocks!). Hidden and secret life indeed - my fascination with trees just reached a whole new level thanks to this book.
Not only are things explained in laymans terms, but with analogies and examples as well - I'm not sure I would have got through it as quickly as I did without it being expertly read to me through the Audible book app, but it's certainly one I would recommend for anyone with any interest in the outside world - particularly those who work directly with trees or silviculture - will make you think twice before you reach for the chainsaw in future!