author
1887–1982
Best known for Applied Design for Printers (1920), this early 20th-century writer and designer brought practical art and layout principles to the printing trade. His work reflects a hands-on interest in how good design could improve everyday printed materials.

by Harry Lawrence Gage
Harry Lawrence Gage was an American author and designer associated with the printing world. The clearest confirmed work tied to him is Applied Design for Printers, published in 1920 by the Committee on Education of the United Typothetae of America.
Available catalog and bookselling records suggest that his writing was aimed at working printers and students of design rather than a general audience. That makes him especially interesting today: his books sit at the meeting point of craftsmanship, visual taste, and the practical needs of commercial printing.
Reliable biographical detail about his life is limited in the sources I could confirm during this search, so it seemed better to keep this overview focused on the work that is clearly documented. No suitable verified portrait image was found on the pages I checked.