Hi Allen,
They are all "Stock Trading Riches" with different covers and titles. There is no new information in them.
I had been thinking of refreshing the book and there was a publishing mixup, and all the title / cover possibilities ended up live on Amazon.
Once on Amazon, titles stay on Amazon forever. Rather than setting them all to "out of print", we put a note in each of the descriptions saying that readers who have already read "Stock Trading Riches" should not buy them.
Perhaps it would be better if I got them taken out of print.
I'm sorry for any confusion you experienced.
Praveen