Cooper Hewitt says...

Harold Monro was the founder and owner of the Poetry Bookshop, a bookstore that also served as a venue for poetry readings, and a center for Monro’s publishing enterprise. The bookshop primarily sold works by contemporary living poets, but also sold popular rhyme sheets for children, each colored by hand. Monro’s publications would frequently be printed by Gerard Meynell’s Westminster Press. [1] Monro organized his shop around the principle that the store be a space where readers and the public would feel comfortable lingering. [2] In addition to running the Poetry Bookshop, Monro was the editor of the Poetry Review (1912), Poetry and Drama (1913-14) and the Monthly Chapbook (1919). Throughout the course of his various business and publishing endeavors, Monro continued to write his own poetry.

[1] Mark Haworth-Booth, E. McKnight Kauffer; a designer and his public (London: Gordon Fraser, 1979), 33.

[2] Joy Grant, Harold Monro and the Poetry Bookshop (Berkeley and Los Angeles: University of California Press, 1967).

See also, The Harold Monro Papers (from 1919-1935) at the UCLA Library, which contains correspondence relating to the Poetry Bookshop and literary circles in London, as well as some manuscripts by Monro and others: https://oac.cdlib.org/findaid/ark:/13030/tf638nb37c/