It's not real thick, but it's not thin either, how's that for a useless description <g>. He talks a little about pruning in general, and then runs through a fairly comprehensive list of garden-type shrubs and trees grown in Britain, with thumbnails of their habits, cultural requirements and oh yeah sometimes a comment about pruning them too. It is a lot less about pruning than you would expect from a book about pruning
I like the way many British horticultural writers (as opposed to only a handful of North American ones) have a very distinct point of view from which they write, and are not afraid to express Opinions such as the garden merit, or lack thereof, of various and sundry plants. The few North Americans who write that way never seem to do it with as much wit or panache as the British ones, either, alas
Er, back to the tree in question, I hope it pulls through and your dog finds something else to play fetch and chewy-toy with
Pat, whose horses have now chomped off the tops of 2 of 5 laurelleaf willow saplings I planted along their fenceline, but it serves me right for not being more liberal and energetic with the fenced-in enclosures surrounding the saplings.