Linguistic studies of the Kwevkepaya (Southern), Tolkepaya (Western), Wipukepa (Verde Valley), and Yavepe (Prescott) dialects have been published (Mithun 1999:578).
The rate of mutual comprehension between Yavapai and Havasupai–Hualapai is similar to that between Mohave and Maricopa (Biggs 1957).
Warren Gazzam, a Tolkapaya speaker, reported that "you know they (Hualapais) speak the same language as we do, some words or accents are a little different".
Yavapai poems are featured in Gigyayk Vo'jka, the anthology of poetry in Yuman languages edited by Hualapai linguist Lucille Watahomigie.
Both works are accompanied by English translations, and the poems in Gigyayk Vo'jka also feature a morphological analysis.