Who is Dr. Donald Korb from A Hope in the Unseen: An American Odyssey from the Inner City to the Ivy League and what is their importance?

Dr. Donald Korb is a successful optometrist. He is one of Cedric's mentors, and he provides Cedric with financial assistance while he is attending Brown. Korb is a generous man, who has committed himself to helping poor urban blacks who have intellectual promise, but who are without the financial means to pursue their dreams.