Dr.B.R.Ambedkar, the greatest Buddhism revival of the 21st century and a dalit from India wrote on Buddha and his teachings in this book "The Buddha and His Dhamma", like Rahula's outstanding writing, Dr.Ambedkar's book is rather scripted in simplistic english than Rahula but incredebly truthful and insightful view on Buddha and his teachings. This is yet another great book about Buddha by Dr.Ambedkar.
The whole book is available on columbia university website, at the following Link:

UNPUBLISHED
PREFACE
April 6, 1956
[Text provided by Eleanor Zelliot, as prepared by Vasant Moon]
A question is always asked to me: how I happen[ed] to take such [a] high degree of education. Another question is being asked: why I am inclined towards Buddhism. These questions are asked because I was born in a community known in India as the "Untouchables." This preface is not the place for answering the first question. But this preface may be the place for answering the second question.
The direct answer to this question is that I regard the Buddha's Dhamma to be the best. No religion can be compared to it. If a modern man who knws science must have a religion, the only religion he can have is the Religion of the Buddha. This conviction has grown in me after thirty-five years of close study of all religions.
How I was led to study Buddhism is another story. It may be interesting for the reader to know. This is how it happened.
My father was a military officer, but at the same time a very religious person. He brought me up under a strict discipline. From my early age I found certain contradictions in my father's religious way of life. He was a Kabirpanthi, though his father was Ramanandi. As such, he did not believe in Murti Puja (Idol Worship), and yet he performed Ganapati Puja--of course for our sake, but I did not like it. He read the books of his Panth. At the same time, he compelled me and my elder brother to read every day before going to bed a portion of [the] Mahabharata and Ramayana to my sisters and other persons who assembled at my father's house to hear the Katha. This went on for a long number of years.
The year I passed the English Fourth Standard Examination, my community people wanted to celebrate the occasion by holding a public meeting to congratulate me. Compared to the state of education in other communities, this was hardly an occasion for celebration. But it was felt by the organisers that I was the first boy in my community to reach this stage; they thought that I had reached a great height. They went to my father to ask for his permission. My father flatly refused, saying that such a thing would inflate the boy's head; after all, he has only passed an examination and done nothing more. Those who wanted to celebrate the event were greatly disappointed. They, however, did not give way. They went to Dada Keluskar, a personal friend of my father, and asked him to intervene. He agreed. After a little argumentation, my father yielded, and the meeting was held. Dada Keluskar presided. He was a literary person of his time. At the end of his address he gave me as a gift a copy of his book on the life of the Buddha, which he had written for the Baroda Sayajirao Oriental Series. I read the book with great interest, and was greatly impressed and moved by it.