About a month ago I discovered "play.google.com" which has a vast assortment of online books. And if you happen to like really old books like I do, then you'll find a wonderful selection of free books which you can read on line. Most of the ones related to the machine trade date from the mid 1800's to the early 20th century. They are books that because of their age are now in the public domain, It looks like most of them are in university libraries around the world, and have been copied just for us!
https://play.google.com/store/search?q=lathe&c=books&price=1
you do have to have a google acct. but it costs nothing.
Levi
https://play.google.com/store/search?q=lathe&c=books&price=1
you do have to have a google acct. but it costs nothing.
Levi