Final answer:
The preface to Frederick Douglass's Narrative of the Life of Frederick Douglass was written by the noted abolitionist, William Lloyd Garrison.
Step-by-step explanation:
The preface of Frederick Douglass's autobiography, Narrative of the Life of Frederick Douglass, was written by the famous abolitionist William Lloyd Garrison, as stated in the preface itself. The preface serves to introduce the life and experiences of Frederick Douglass to the reader, giving a brief summary of his life as a slave, his escape, and how he came to be a prominent figure in the anti-slavery movement. It was written in a compassionate and sympathetic manner, with Garrison expressing his admiration for Douglass's courage and determination in his fight against slavery.
Learn more about Frederick Douglass's preface