author
A clear, practical voice from the early twentieth-century printing trade, this author wrote concise guides that helped apprentices learn the tools and discipline of typography. His books open a window onto the craft behind hand-set type and the everyday work of the composing room.

by A. A. (Alexander A.) Stewart
A. A. Stewart, also listed as Alexander A. Stewart, wrote instructional books on printing and typography in the early 1900s. Surviving catalog records connect him with works including The Printer's Dictionary of Technical Terms (1912), Type (1918), Type Cases and Composing-room Furniture (1918), and Typesetting (1919).
His books were practical manuals rather than literary memoirs. They were published for printers, apprentices, and students, especially through the Typographic Technical Series for Apprentices and organizations tied to printing education such as the United Typothetae of America and the School of Printing at North End Union in Boston.
Very little biographical information about Stewart himself appears to be readily confirmed from the sources available here. What does come through clearly is his role as a teacherly technical writer: someone focused on explaining hand composition, printing materials, and shop practice in a direct, useful way for working printers.