The book you are referring to is likely titled Making Revolution: My Life in the Black Panther Party (or the alternate title, Just Another Nigger: My Life in the Black Panther Party) by Don Cox. There are no search results suggesting the book itself is a deception; rather, it is considered a valuable primary-source recollection that offers an honest, "no filter" look at the organization, including its flaws and the government's efforts to disrupt it.