Howdy:
I have not read said book, am no expert on the topic, but Mr. Sobon clearly knows his stuff. A search of the modern writings on the topic should be easy with Internet access.
A clear understanding of the nature, composition and behavior of wood is going to help but results will improve with practise. Shin pads and steel-toed shoes are not a bad idea but are no replacement for a well reasoned approach.
As they told me in scouts "never whittle towards yourself"
Where are you located? There may be a hewer working in the area.

Best luck,
Curtis