<blockquote>
<p>Is there some sort of marketing reason for this trend?</p>
</blockquote>
<p>This answer is based on general book publication, not to manga book (<em>tankobon</em>) specifically, but I believe this also applies to tankobon.</p>
<p>The main purpose of a cover art is <strong>to promote the product</strong>.</p>
<blockquote>
<p>The art has a primarily commercial function, i.e., <em>to promote the product it is displayed on</em>, but can also have an aesthetic function, and may be artistically connected to the product, such as with art by the creator of the product. - <a href="https://en.wikipedia.org/wiki/Cover_art" rel="noreferrer">Wikipedia</a></p>
<p><sup>(Emphasis mine)</sup></p>
</blockquote>
<p><a href="https://en.wikipedia.org/wiki/Seth_Godin" rel="noreferrer">Seth Godin</a> wrote <a href="http://sethgodin.typepad.com/seths_blog/2009/07/the-purpose-of-a-book-cover.html" rel="noreferrer">a blog article</a> about this, focusing on the physical form,</p>
<blockquote>
<p>Is the purpose of the cover to sell books, to accurately describe what's in the book, or to tee up the reader so the book has maximum impact?</p>
<p>The third.</p>
<p>It's the third because if the book has maximum impact, then word of mouth is created, and word of mouth is what sells your product, not the cover.</p>
<p>Tactically, the cover sells the back cover, the back cover sells the flap and by then you've sold the book. [...]</p>
</blockquote>
<p>On the other hand, this is what <a href="https://en.wikipedia.org/wiki/Guido_Henkel" rel="noreferrer">Guido Henkel</a> thought on <a href="http://guidohenkel.com/2015/09/what-is-the-real-purpose-of-a-book-cover/" rel="noreferrer">his blog</a>, focusing more on the digital form,</p>
<blockquote>
<p>So, let me ask you this question… <strong>what is the purpose of the cover?</strong></p>
<p>The purpose of a book cover <em>is not to perfectly illustrate the story down to the smallest detail or to showcase every aspect and facet of the plot</em>. [...]</p>
<p>The sole purpose of a book cover is <em>to help sell the book</em>. A book cover is a selling tool! Nothing more, nothing less. It serves the purpose to attract eyeballs and then get those people intrigued enough to click on the cover thumbnail and learn more about the book, which, hopefully, will then result in a sale. If visitors on Amazon do not notice a book cover because it is easily overlooked and disappears among other covers, it serves absolutely no purpose and is actually detrimental to the author because uncounted potential sales are lost right there.</p>
<p>[...]</p>
<p>You always have to keep in mind that for the most part you are trying <em>to sell books to people who are not familiar with you and who do not know the book or the story—at all</em>. It is the cover that will hopefully draw them to it. It is the cover that will hopefully connect with them and intrigue them enough to find out more. [...]</p>
</blockquote>
<p>While both had a contradicting view, <em>neither mentioned that the purpose of a book cover is to illustrate the content of the book</em>.</p>
<hr />
<blockquote>
<p><em>One Piece</em> cover page was always/often not related to the content of the book (well just some of it) <em>in the past</em>. But now, the cover's always related to the current chapter. Why did they change that?</p>
</blockquote>
<p>I haven't researched about cover art on serial books, but I have a hunch that on later volumes, the more important thing is to retain current readers. By this time, current readers already have an idea about the story. That's why by using the story plot as the cover, the author can draw more attention to the current readers, while hopefully still attracting new reader's curiosity (to buy earlier volumes).</p>
<p>Again, Guido Henkel mentioned this on his blog,</p>
<blockquote>
<p>Only then will you be able to tap into new readers. Readers who are essential for growing your customer base not only for this book, <em>but also for your next</em>.</p>
<p><sup>(Emphasis mine)</sup></p>
</blockquote>
<hr />
<p>Anecdotally, unless I've already heard/known about the work (in which, I don't care about the cover at all and just buy the tankobon), I only look at the cover art (and the title, if browsing online), and if it's interesting enough, then I'd read the detail (online)/synopsis (back cover)/if possible, read some of the early chapters. By this time, I won't care if the cover art is related to the story/content or not, nor do I expect it.</p>

CC BY-SA 3.0
2017-09-23T05:29:49.037Z
Finally , a good answer that satisfy me :) make sense enough.
Gagantous
CC BY-SA 3.0
2017-09-23T04:45:06.500Z
2017-09-23T04:45:06.500Z
2020-06-17T09:17:53.303Z
Aki Tanaka
<p>In manga cover pages for the tankoubon version, I find it funny that the cover page always/often is not related to the content of the book.  Usually there is a big event of sorts that are drawn on the cover, but nothing in the book tells the reader about that event or even describes it.</p>

<p>In some series, like One Piece, Maruto, Magi, Toriko, etc., the cover of the manga would be present in the current chapter or at least be about the events of the current arc or plot line.  But in other series, like Hayate, Zettai Karen Children, Kurosagi, the pattern of irrelevance is consistent, with most of the cover art showing events that never happen in series.</p>

<p>Is there a some sort of marketing reason for this trend? </p>

CC BY-SA 3.0
2017-09-20T15:51:14.393Z
Though I feel like remembering some mangaka characters in some anime and/or manga talking about having to draw tankobon covers, I looked around and wasn't able to find anything definitive in English and I don't know any Japanese. From the line above I would conclude that tankobon covers are up to the mangaka (probably have to be accepted by the editor, marketing, etc. though), but this is just my personal speculation.
Gorzius
CC BY-SA 3.0
2017-09-20T15:58:39.547Z
@Gorzius one piece is a good example for this topic. I have the physical edition of one piece and what i could tell, one piece cover page always/often is not related to the content of the book (well just some of it ) _in the past_. But now, the cover's always related to the current chapter. Why did they changed that ?
Gagantous
CC BY-SA 3.0
2017-09-20T16:15:58.713Z
@Gagantous What I meant with my comment was that designing the covers of tankobons are likely up to the mangakas (with some editorial involvement). So in case of One Piece the change was likely Eiichiro Oda's decision, and some push from his editor or the publishing company might have been involved towards the decision.
Gorzius
CC BY-SA 3.0
2017-09-22T10:16:12.397Z
I often see this in anime openings as well.
giraffesyo
<manga-production>
Why are manga cover pages not relevant with the current arc?
# Why are manga cover pages not relevant with the current arc?
Posted by: username_0 on 2017-09-15
In manga cover pages for the tankoubon version, I find it funny that the cover page always/often is not related to the content of the book. Usually there is a big event of sorts that are drawn on the cover, but nothing in the book tells the reader about that event or even describes it.

In some series, like One Piece, Maruto, Magi, Toriko, etc., the cover of the manga would be present in the current chapter or at least be about the events of the current arc or plot line. But in other series, like Hayate, Zettai Karen Children, Kurosagi, the pattern of irrelevance is consistent, with most of the cover art showing events that never happen in series.

Is there a some sort of marketing reason for this trend?
**Tags:** manga-production
> **Comments:**
> **username_1**: Though I feel like remembering some mangaka characters in some anime and/or manga talking about having to draw tankobon covers, I looked around and wasn't able to find anything definitive in English and I don't know any Japanese. From the line above I would conclude that tankobon covers are up to the mangaka (probably have to be accepted by the editor, marketing, etc. though), but this is just my personal speculation.  
> **username_0**: @Gorzius one piece is a good example for this topic. I have the physical edition of one piece and what i could tell, one piece cover page always/often is not related to the content of the book (well just some of it ) _in the past_. But now, the cover's always related to the current chapter. Why did they changed that ?  
> **username_1**: @Gagantous What I meant with my comment was that designing the covers of tankobons are likely up to the mangakas (with some editorial involvement). So in case of One Piece the change was likely Eiichiro Oda's decision, and some push from his editor or the publishing company might have been involved towards the decision.  
> **username_2**: I often see this in anime openings as well.  
---
## 1 answers
### Answer by username_3 on 2017-09-23. Score: 6 | Accepted answer
> Is there some sort of marketing reason for this trend?

This answer is based on general book publication, not to manga book (*tankobon*) specifically, but I believe this also applies to tankobon.

The main purpose of a cover art is **to promote the product**.

> The art has a primarily commercial function, i.e., *to promote the product it is displayed on*, but can also have an aesthetic function, and may be artistically connected to the product, such as with art by the creator of the product. - [Wikipedia](https://en.wikipedia.org/wiki/Cover_art)
>
> (Emphasis mine)

[Seth Godin](https://en.wikipedia.org/wiki/Seth_Godin) wrote [a blog article](http://sethgodin.typepad.com/seths_blog/2009/07/the-purpose-of-a-book-cover.html) about this, focusing on the physical form,

> Is the purpose of the cover to sell books, to accurately describe what's in the book, or to tee up the reader so the book has maximum impact?
>
> The third.
>
> It's the third because if the book has maximum impact, then word of mouth is created, and word of mouth is what sells your product, not the cover.
>
> Tactically, the cover sells the back cover, the back cover sells the flap and by then you've sold the book. [...]

On the other hand, this is what [Guido Henkel](https://en.wikipedia.org/wiki/Guido_Henkel) thought on [his blog](http://guidohenkel.com/2015/09/what-is-the-real-purpose-of-a-book-cover/), focusing more on the digital form,

> So, let me ask you this question… **what is the purpose of the cover?**
>
> The purpose of a book cover *is not to perfectly illustrate the story down to the smallest detail or to showcase every aspect and facet of the plot*. [...]
>
> The sole purpose of a book cover is *to help sell the book*. A book cover is a selling tool! Nothing more, nothing less. It serves the purpose to attract eyeballs and then get those people intrigued enough to click on the cover thumbnail and learn more about the book, which, hopefully, will then result in a sale. If visitors on Amazon do not notice a book cover because it is easily overlooked and disappears among other covers, it serves absolutely no purpose and is actually detrimental to the author because uncounted potential sales are lost right there.
>
> [...]
>
> You always have to keep in mind that for the most part you are trying *to sell books to people who are not familiar with you and who do not know the book or the story—at all*. It is the cover that will hopefully draw them to it. It is the cover that will hopefully connect with them and intrigue them enough to find out more. [...]

While both had a contradicting view, *neither mentioned that the purpose of a book cover is to illustrate the content of the book*.

---

> *One Piece* cover page was always/often not related to the content of the book (well just some of it) *in the past*. But now, the cover's always related to the current chapter. Why did they change that?

I haven't researched about cover art on serial books, but I have a hunch that on later volumes, the more important thing is to retain current readers. By this time, current readers already have an idea about the story. That's why by using the story plot as the cover, the author can draw more attention to the current readers, while hopefully still attracting new reader's curiosity (to buy earlier volumes).

Again, Guido Henkel mentioned this on his blog,

> Only then will you be able to tap into new readers. Readers who are essential for growing your customer base not only for this book, *but also for your next*.
>
> (Emphasis mine)

---

Anecdotally, unless I've already heard/known about the work (in which, I don't care about the cover at all and just buy the tankobon), I only look at the cover art (and the title, if browsing online), and if it's interesting enough, then I'd read the detail (online)/synopsis (back cover)/if possible, read some of the early chapters. By this time, I won't care if the cover art is related to the story/content or not, nor do I expect it.
> **Comments:**
> **username_0** (2017-09-23): Finally , a good answer that satisfy me :) make sense enough.  
---
