Williams' major collections are
Kora in Hell (1920),
Spring and All (1923),
Pictures from Brueghel and Other Poems (1962),
Paterson (1963, repr. 1992), and
Imaginations (1970). His most anthologized poem is "The Red Wheelbarrow", considered an example of the Imagist movement's style and principles (see also "This Is Just To Say"). However, Williams, like his associate Ezra Pound, had long ago rejected the imagist movement by the time this poem was published as part of
Spring and All in 1923. Williams is more strongly associated with the American Modernist movement in literature, and saw his poetic project as a distinctly American one; he sought to renew language through the fresh, raw idiom that grew out of America's cultural and social heterogeneity, at the same time freeing it from what he saw as the worn-out language of British and European culture.
Williams tried to invent an entirely fresh form, an American form of poetry whose subject matter was centered on everyday circumstances of life and the lives of common people. He then came up with the concept of the variable foot evolved from years of visual and auditory sampling of his world from the first person perspective as a part of the day in the life as a physician. The variable foot is rooted within the multi-faceted American Idiom. This discovery was a part of his keen observation of how radio and newspaper influenced how people communicated and represents the "machine made out of words" (as he described a poem in the introduction to his book, The Wedge) just as the mechanistic motions of a city can become a consciousness. Williams didn’t use traditional meter in most of his poems. His correspondence with Hilda Doolittle also exposed him to the relationship of sapphic rhythms to the inner voice of poetic truth:
- "The stars about the beautiful moon again hide their radiant shapes, when she is full and shines at her brightest on all the earth"...Sappho.
This is to be contrasted with a poem from
Journey To Love titled "Shadows":
- "Shadows cast by the street light
- ::under the stars,
- :::the head is tilted back,
- the long shadow of the legs
- ::presumes a world taken for granted
- on which the cricket trills"
The breaks in the poem search out a natural pause spoken in the American idiom that is also reflective of rhythms found within jazz sounds that also touch upon Sapphic harmony. Williams experimented with different types of lines and eventually found the "stepped triadic line", a long line which is divided into three segments. This line is used in
Paterson and in poems like "To Elsie" and "The Ivy Crown." Here again one of Williams' aims is to show the truly American (i.e., opposed to European traditions) rhythm which is unnoticed but present in everyday American language. Stylistically, Williams worked with variations on free-form styles, notably developing and utilising the triadic line as in his lengthy love-poem Asphodel, That Greeny Flower.