I came here to comment on Geo. H. Thomas's The Model Engineer's Workshop, but have stayed to thank the contributors for the very measured discussions of freeemasonry and school-teaching.
My late father was a freemason (as were my grandfather, uncle and brother) and for many decades a church elder. He would not have stayed five minutes in an organisation which was corrupt or questionable.
I started out as a power station apprentice and ended as a science and technology teacher, and became very disillusioned by the general public's jaundiced view of teaching, something they had never done and didn't really understand. It was only the interaction with the kids that kept me at it for so many years. The teachers I really admire are those who teach Maths, or History, or RE with no practical input.
Anyway, back to Thomas's book: It's full of really valuable information based on sound thinking and practical experience. However, having its origins in a series of magazine articles, there are lots of vegetables and gravy along with the meat. That's not a criticism because I learned when I was a technical author (yes, I've been about a bit) that one writes according to the needs of one's readership. When I write the occasional magazine article I put in vegetables and gravy, and a bit of seasoning too.
When I want to tackle one of his projects (or indeed, any other magazine-based project) I scan and convert the original and boil it down to what I need. It not only gives me a more useable text, but aids my understanding too.
George