+1 on How to Run a Lathe, particularly if you have a Southbend!
The English "Workshop Practice" series is good - a bit of a model-engineering bias to them, but pretty useful all the same, possibly excepting the clock-making ones?
Sparrey's "The Amateur's Lathe" is good, title sums it up!
In the 60's ( ? ) Newnes published "Newnes Complete Lathework" - 2 volumes, first volume is excellent with examples that were used as apprentice pieces etc., the second is mainly focused on turret and automatic screw lathes though
As far as bought videos, I really like Darryl Holland's videos on both lathework and milling (using a bridgeport as an example), I think they're available through the American Gunsmithing Institute in the US, a bit hard to find in the UK / Oz? He has a real emphasis on precision, and goes into a lot of detail about speeds, feeds, depths of cut etc.
Rudy Kouhoupt's videos are good, but his voice sends me to sleep...
On Youtube there's a bit of a signal-to-noise problem - some are good, some very very good, some are just plain scary!
Dave H.