I maintain a library of dozens of books about trading, some good and some not so good, but I keep almost all of them and re-read them from time to time. One book I did NOT keep was Niederhoffer's. It went in the trash after the first read. One thing I noticed about VN that I no one else mentions is that he "tries" to be an oddball, when in fact he really isn't. Showing up to work barefoot, reading the Enquirer and requiring his employees to do the same. dont forget about the senile old coot he hired to give him checkers lessons, (during the trading day). Those are things, (I believe), he just deliberately did to give himself the reputation of an oddball. I don't think he's actually any more neurotic than any other trader. In other words, it was just a facade.
Niederhoffer is a perfect example of someone who is getting by on connections, not competence. His personality built by word of mouth is much bigger than his trading ability and he still has people who want to hand over millions of dollars to him. On a % basis, many of us are much better traders than VN. But his "reputation" precedes him.