Can't you see, you're like a book of poetry
He compares his mother to a beautiful book of poetry. In the next line he describes the beauty of that book by saying that it contains poetry from Maya Angelou and Nicky Giovanni.
Sidenote, Kanye was very interested in poerty and spoken word, he admired the way people listen to it and what inpact just the words have on people, whithout playing any music at all.
To help improve the meaning of these lyrics, visit "Hey Mama" by Kanye West Lyrics and leave a comment on the lyrics box