I found the following in an ezine article. It is such a sad definition of an Amazon.com bestseller that you might as well declare any book on Amazon.com a bestseller.
If your book sales are amongst the Top 100 in any category on Amazon, you are technically a bestseller. You don’t have to be in the Top 100 of all books. There are dozens of categories and sub-categories on Amazon, and if you achieve a sales ranking in the Top 100 in any of these, you can say you are a bestseller. Of course, it is always nice to hit the “Top 20″ or the “Top 5″ or (best of all) the #1 sales rank in one or more categories.
To declare that you are a bestseller because you hit the top 100 in any category really means that you don’t have to make any sales at all to be an Amazon.com bestseller. I think I’ll upload a 2-page bogus report on crocheting Halloween costumes. I guarantee you that I’ll be in the top 100 of Amazon for that category the second I upload that bogus report (because there aren’t 100 books in that category so it’s a guaranteed hit).
I’m not going to do that because it’s a waste of my time, but I wrote the above to make a point: If you are in the top 100 for a subcategory on Amazon, you are NOT a bestseller – not by any reasonable definition of the term. A bestseller is one of the top 100 in all of Amazon or, if you are desperate — and I mean desperate — the top five in a category. Anything else is not a bestseller.
Get that out of your head.
If you want to become an Amazon.com bestseller, do the work. Deserve it. Sell some books.
There are so many bogus Amazon bestselling authors out there that to be an Amazon bestseller is now meaningless. It’s because of statements like those in the italics above that Amazon bestseller status is no longer something to be proud of. Anyone can — and does — claim such status. It is now a meaningless claim.
Because so many authors now claim to be bestsellers, even the term bestselling author is no longer a status symbol. Anyone can make the claim. It’s become meaningless. That’s sad.