I can't see this mentioned anywhere else. I know someone who did this. He was really impressed with it but I think it's a scam
He says he can call himself a bestselling author. also that he is a co-author with the other big name authors in the book. I disagree. I think he is a contributor. And given that the only criterion for entry into the book is payment of money I don't see that it should count as a publishing credit.
I can see for him it may have helped as he wants to establish himself as an expert in his field but still... The gold program is US$2500. platinum $5000
anyone else had any contact witht his crowd?