"Gone with the Wind" costume sketches

I am a big fan of Margaret Mitchell's work "Gone with the Wind".While i was researching on it I found these amazing sketches.I am interested in costume myself and well happy with this finding!

Also,have found a nice book in Museum of London today,"Patterns of Fashion" by Janet Arnold.Book has pattern schemes for many dresses of 19-20 centuries,my favorite time in history!Might get it and start an exploration.