[Triceratops]

I'm half annoyed, half amused. At least he had a decent cover (Side Hustles, below).

Spoiler alert: he didn't make money.

https://www.vice.com/en_uk/article/dyzw9a/can-you-make-money-write-ebook

 

[Kathy Dee]

He's not doing too badly (when I checked) ...

Amazon Best Sellers Rank: #149,780 Paid in Kindle Store (See Top 100 Paid in Kindle Store)
#38 in One-Hour Self-Help Short Reads
#32 in Budgeting
#42 in Online Trading

He's selling about 20/month at present. If he is doing that on keyword searches and his website presence i.e. without advertising, then he is doing okay; he may be able to sustain that level. Good luck to him!