Byron is the subject of much writing, not least because his life was considered scandalous at the time, since he was the prototypical romantic hero (or, as one of his biographers remarked, " a concentrate of Werther and Hamlet rolled into one".)
You can read at length about him at the Poetry Foundation's excellent website.
The British Library offfers a more succinct (but still thorough) portrait here.
You can finally have a close look at the mss of the first two cantos of Childe Harold.