Reminesinces is being referred to as "the book", actually there are other books about Livermore, one by Richard Smitten goes into great detail about him.
Smitten interviewed the wife of Jesse's oldest son. She told Smitten that Jesse Jr. said that his father's trading and personality changed after the creation of the SEC in 1934. She doesn't say this, but I think it was because after the SEC he couldn't operate pools anymore and he couldn't feed stock to the public in IPO fashion anymore. Yes I know in Reminesences he often said he played a lone hand, but that was not entirely true.
There is a book that is deceptively titled, "Jesse Livermore: Speculator King". It is actually a slam of Jesse Livermore written by a little weasel named Paul Sarnoff. Sarnoff was such a scumbag he actually relishes Jesse Livermore's experience of being robbed at gunpoint. BTW, Sarnoff has since died, but I once found a document on the SEC website where he settled churning and burning charges with a client of his. What an asshole Sarnoff was. Good riddance.
Livermore started out as a teenage runaway with just a couple of dollars in his pocket. He built it into a massive fortune, there is no denying that. Critics love to harp on Livermore's huge market losses, as if his estate Evermore and his fabulously furnished office in the Hecksher building never existed. Jesse Livermore was a great trader for his time.
One other interesting tidbit about Livermore - Richard Smitten also interviewed Paul Livermore, Jesse's youngest son, about Jesse's suicide. Paul said that when he went to the home of his stepmother Harriet, (Jesse's wife at the time), she was gathering up paper bags full of cash and jewelry and getting it out of the house because she was sure the police may come there to search it as part of their investigation into the suicide. She said it would be too hard to explain it, so she was getting it out of the house. Paul said he didn't know how much it was, but it was a lot, in fact it was in several bags. So there was more to the Livermore fortune than his trust accounts that were known about. he obviously kept some cash under the mattress too.
Oh - one other tidbit. That last wife of Livermore's - four of her husbands committed suicide including Jesse.