I've been searching and collecting information for my Scribal Resources page. Recently I came across this large free book collection by David Myers. Rather than pillage his items individually, please, check The Art is Creation, Free* Artist Reference e-Books page yourself.
The web page is a scribe and art history geek's on-line library in one place. The books contain a humongous free information trove. Most available in Kindle format.
No longer do you have to pay hard earned money for books or spend days at local college libraries gleaning information. (I described the research transition from library to online in a prior post.) Today, your access is easier. Take advantage of it.