PDF's of the old COSIRA  Rural Crafts publications from the 40s
and 50s are available here for download. You need a high-speed net
connection or, if you're in the boonies on dial-up, much patience.
Try "The Blacksmith's Craft" and "Wrought Ironwork: A Manual of
Instruction for Craftsmen". I ordered these (and "Decorative
Ironwork") from England in hardcover 40 years ago and found them
variously useful and, for a novice, inspirational.
I see that some of these titles are offered on Amazon for reasonable
prices if you prefer real books to PDFs as much as I do. :-)
 Council for Small Industries in Rural Areas, now, AIUI, defunct or
borged some larger agency.
Mike Spencer Nova Scotia, Canada