How many books are sold by authors with only one novel?

I'm not sure exactly. It depends on various factors like marketing, popularity, and distribution.

The amount of comic book issues sold is really hard to pin down. It depends on factors like the comic's characters, story, and how well it's promoted. Big superhero comics usually sell more than niche or indie ones.

I'm not sure of the precise figure. But you could check industry reports or market research for more accurate and detailed information.

I'm not sure exactly, but it's likely that the number varied depending on the genre and publisher.

I'm not sure of the precise figure. But the sale of fiction books in 2018 was considerable, driven by various popular genres and authors.

Well, determining the exact number of comic books sold in 2016 is quite challenging. Different publishing companies and market research firms might provide varying data. But it's clear that the comic book industry had a considerable volume of sales that year.

The number of comic books sold each year is quite fluid. It can be influenced by trends, new releases, and the strength of the comic book industry. Generally, it could range from a few million to tens of millions.

I'm not sure exactly how many were sold. It could vary depending on different regions and time periods.

It's hard to give an exact number as it varies greatly depending on many factors like genre, author popularity, and marketing efforts. But it's in the millions globally.

The number of comic books sold each year is quite difficult to determine precisely. It's influenced by things like new releases, franchise popularity, and the economy. Generally, though, it's a significant amount.