Can we trust the book To Be A Slave?

I think we can trust the book To Be A Slave, written by Julius Lester. First of all, he is a famous author from 50 years ago, and he received many honors, such as Newbery Honor. I think people who does receive this kind of big honor won't write something that isn't true. And mostly, this book DID recieve a Newbery Honor. Secondly, he was a writer, and he must had a good resources to write this book. And I assume that those resources that Lester used is a true information, and trustworthy. Finally, he was a Jewish person, and have known a real event or something big about a slave trade, because there was Hebrew slavery trade in Egypt during the time he was alive. He might have seen a slave trade, when he was small. Plus, facts about the slave trade is also written in Hebrew Bible. From these reasons, I think Julius Lester's information is real and trustworthy.