True. I've noticed this in authors like M.A.R.Barker and Ursula LeGuin, their later works when they were older were very, very different from their earlier one

True. I've noticed this in authors like M.A.R.Barker and Ursula LeGuin, their later works when they were older were very, very different from their earlier ones (in Barker's case the 20-year gap between the two groups probably made it a lot more obvious). If I'd encountered them as being from some random unknown author I probably wouldn't have read them.