Over the past five or so years I’ve picked up the series of books Jurgen Eicharrdt wrote on machining. His practice is centred around model ship building but his technique is very well suited to the small scale modeller. All four books in his latest series are in German but they are very well illustrated and anyone familiar with work of this nature will be able to follow along.
Eichardt is East German, built his own machine tools, has plenty of opinions and is a pretty skilled guy.
Here’s his website. Scroll down to see his evolving model of the USS Cassin Young.
One source of books – they’re also on the bay and amazoon.