as the beginning of the article says: it all depends on what qualifies as a book
if you're including epub novels, that have never had a print done... then yeah, at least is gonna be the operating word, likely multiple times considering just how many fiction books are being produced on webnovel sites and then published as epubs for their fans to buy and support the author.
if you're including epub novels, that have never had a print done... then yeah, at least is gonna be the operating word, likely multiple times considering just how many fiction books are being produced on webnovel sites and then published as epubs for their fans to buy and support the author.