How to get a nice rounded sleeve edge on a coat jacket by sewing a bias piece of fleece to the curved seamline on the upper sleeve prior to attaching sleeve. Helpful sewing tips. This tip would be useful while sewing American Girl Doll coats as well.
The Great Coat Sew-Along: Shaping the Lapels and Collar: a tutorial from Paco Peralta
button fly from Cutter and Tailor
The Anatomy of a Tailored Jacket plus a complete tutorial from begining to end to make a Jacket. Pattern ~ scissors ~ cloth.
I also reinforced the shoulder by adding bias cut hair canvas. Padstitched the lapels, taped the roll line (by hand) so that the lapels lie close to the body without gaping.
The Bespeaker’s Guide to Tailored Clothing for Women - The Bespeaker's Guide to Tailored Clothing - The Cutter and Tailor