Typography. Before 1933: typographic adviser to the Berlin publisher Euphorion.
- Contemporary typefaces and material as employed in the bibliophile book (co-editor), Berlin: Berliner Bibliophile Abhandlungen, 1931.
- ‘Germany’, in ‘A survey of the making of books in recent years’, The Dolphin, 1933, pp. 264-88, esp. pp. 270, 271 ,