Over the years I have always found that the autobiography is always better than the biography. It’s because the biographer has a bias and, in some way or another, he will distort the subject of his writing. This is why it’s so important to read the original documents if at all possible. They will give you clarity.
However, this is not always the case. Even the original documents may have a bias as well.
In my reading through 2 Chronicles, I came across the historical account of Solomon. I read of God’s blessing upon his life, the building of the temple, the visit of the Queen of Sheba, and a description of his riches and military might. However, I noticed a glaring hole. No account was given of his moral failures (of which you can read in 1 Kings 11). It struck me that even the historical documents have a bias as well. So, read with discernment.