The Blues Vernacular Theor y set forth by Houston A. Baker, an Afro-American literary criticist, is a sign ificant mark for the generational shift and transformation of Afro-American lit erary criticism.

• 非裔美国黑人文学批评家休斯顿· A·贝克的布鲁斯本土理论是美国黑人文学批评的换代与转型的重要标志。