Wisconsin's Flying Trees in World War II

This is an interesting subject, especially since I grew up in Northern Wisconsin where much of the work described was done.
The writing is kind of clumsy and that is distracting.
The main subject of the book is the use of plywood in aircraft and after reading it I still am not sure how sheets of wood are removed from a log or how plywood is shaped into curved aircraft sections.
I had no idea how much wood went into shipping things to the front and that you could build aircraft from plywood.
The authors grandfather ran a company that made plywood for use in the British Mosquito bomber.
This became important to the book when she wrote a letter to a German company that provided some equipment they used to ask about any records they had about her grandfathers visit to Germany in the late 1930's.
They said they couldn't because airplanes built with plywood her grandfather had made using the German equipment and destroyed their archives during the war.