Cohen, Milton A., Poet and the Painter: The Aesthetics of E. E. Cummings's Early Work, Wayne State University Press, 1987.

Cohen explores cummings's development as an artist and poet by analyzing his notes on aesthetic theory. This is an important study of cummings's influences and how his theories on writing and painting came together.

Cureton, Richard D., "Poetry, Grammar, and Epistemology: The Order of Prenominal Modifiers in the Poetry of E. E. Cummings," in Language & Structure Vol. 18, No. 1, 1985, pp. 64-91.

Cureton analyzes cummings's use of adjectives in his poetry, exploring the connection between cummings's adjectival order and his ideology.

McBride, Katharine Winters, ed., A Concordance to the Complete Poems of E. E. Cummings, Cornell University Press, 1989.

This book lists more than 13,000 words used by cum-ming, including combined words and neologisms (made up words) found in Complete Poems. This is a useful text for those doing a...