author
A practical early-20th-century writer on printing, he produced clear guides for compositors and other beginners learning the craft. His books focus on the hands-on side of typography, from type cases and composing-room equipment to the everyday work of setting type by hand.

by A. A. (Alexander A.) Stewart
Alexander A. Stewart was an American author and printing educator best known for straightforward manuals on typography and print-shop practice. Records linked by Project Gutenberg and library catalogs identify him as the author of Typesetting, Type, Type Cases and Composing-room Furniture, and The Printer's Dictionary of Technical Terms.
His writing is notably practical. Instead of treating printing as an abstract art, Stewart explained the tools, materials, and habits of the composing room in a way that would have helped students and apprentices learn by doing. That makes his books useful not only as manuals, but also as snapshots of how printing was taught in the early 1900s.
Available records indicate that he died on January 6, 1919, and was buried in Beverly, Massachusetts. Beyond those basics, reliable biographical detail appears to be scarce, so his surviving reputation rests mainly on the clarity and usefulness of the books he left behind.