How Is An Ebook Made?

I’ll never forget when we gave my dad an iPhone. He’d been wanting one for a while and he was already great with his Blackberry, but there was one thing he was confused about. He held up a CD and his iPhone. “What I don’t get is how I get this onto here.” He mimicked trying to force the CD into the phone and we kids laughed… with him, mostly with him.

Every day, scores of people make the switch to reading ebooks, but I’ve realized that almost no one knows how they’re made. And so budding gumshoe that I am, I hiked up two floors and interviewed Holden and Kerri from our ebook team to get to the bottom of things.

Step 1: Clear the rights
Like most publishers, in addition to publishing nearly all of our new titles as ebooks, we’re working our way through our backlist. Many of the older contracts were written before ebooks existed and so we work with the agents, authors, and illustrators to get the ebook rights settled. With new books, the ebook rights were generally negotiated when the book was acquired.

Step 2: Find the files
For a new book, this isn’t too tricky because we would have been planning on the ebook from the start, but for older books it can be more of a challenge. What we’re looking for is the final digital file of the print book—the one that would have been sent to the printer.

Step 3: Creative planning and execution
This is one of the most interesting steps! Though most people think of ebooks as text-only “e-ink” experiences, in truth ebooks come in a variety of formats with different bells and whistles. For instance an ebook can be published as:

a reflowable ebook
which means that the user can change the size of the text, click words to look up definitions, and more

a fixed format ebook
which means that the layout is nearly identical to the print book, preserving the pretty fonts and design

an enhanced ebook
which mean that it could include bonus content like audio and video and interactive features like clickable pop-ups


We take a hard look at each print book and decide what format and which enhancements (if any) make sense for the ebook. And then, the ebook team makes a storyboard, showing exactly where these features will go and how they will work.

You might remember from my last blog post about Chloe, Instead and Wumbers that we sometimes add audio to ebooks. Ever wonder who those voice actors are? Well, it’s us! Holden and Kerri keep an ear out around the company for people with good voices and then ask them if they can spare an afternoon to record audio parts. For some books, we tap people who can speak other languages. Peter Perez just wrapped up recording the Spanish audio for our bilingual editions of Taro Gomi’s Spring Is Here, Bus Stops, and My Friends.

Step 4: Conversion
Once the digital file for the print book is located, we send it over to an ebook conversion house that specializes in converting it into what is known as “an epub.” Epub is the standard, open-source format for ebooks.

Step 5: Q/A
Next the conversion house sends the file back to our ebook team and they begin to check the files for changes and improvements. This is also when they will add in any enhancements to the ebook, such as audio and pop-ups.

We’re very proud of the fact that our error rate is well below the industry average. Holden and Kerri make this happen through good old-fashioned hard work and long hours. It’s important to us that the ebook versions of our books are just as beautiful as their print counterparts—and we hope that shows in the final product.

Step 6: Distribution
After a book passes the Q/A process with our team, it is then sent to a distribution house. This step is very similar to the print world, where books are sent to a central warehouse to be redistributed to bookstores all over the world. The ebook distribution house takes our single file and distributes it to all our ebook retail partners (e.g., Kindle, Nook, iBookstore, Sony, Kobo, OverDrive, etc.) in their preferred formats.

And not long after the file is delivered to the ebook retailers, it goes up on their sites—where customers like you may buy it and download it to your devices.

I hope that clears up how an ebook is made, but definitely leave a comment if you have more questions for Holden and Kerri! We’ll have them chime in with answers.

Alison Presley

I’m in charge of online strategy at the fabulous Chronicle Books. When not reading, marketing, writing, or thinking about books, I enjoy outdoor adventures. I eat more chocolate than is strictly advised.
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  • KittenCat August 31, 2012 at 11:29 am

    This sounds really amazing I'd love to learn to do this!! :)) also I have a friend who does amazing voices – how can I get him to you? :)) ha!! :))


  • pastrystudio August 31, 2012 at 12:03 pm

    Thanks for an illuminating post! Care to share where you send your files to be converted into epub format? Thank you.


  • phuong August 31, 2012 at 12:37 pm

    I have learned so much today.


  • Mara November 30, 2012 at 12:56 pm

    Thank you for this very informative post. My question: do you know if ebooks that are destined for library lending services are designed (graphically) differently? For instance, are some of the bells and whistles left off?


  • Ali November 30, 2012 at 5:03 pm

    Hi Mara,

    The answer is no–at least in the case of Chronicle. I can't speak to other publishers of course.

    Bells and whistles are really determined by who can accept what kind of files. It's our dream to have the enhanced version at all retailers–but that just depends on what their devices can support.

    My guess is that library networks are probably trying to please the greatest number of people and their devices so they prefer to purchase the basic ebook version.

    Hope that helps!



  • Maeve October 5, 2014 at 11:23 am

    Does someone proofread the final product? I find an alarming number of typographical, grammatical and spelling errors in the ebooks I read. As a former medical transcriptionist, I am disappointed in this error rate. I have rarely found a "typo" in a printed book, but I am surprised at the errors in ebooks. Why/how does this happen?


  • Jack September 8, 2015 at 4:33 pm

    I have read quite a few ebooks. One problem I have noticed is quite a few editing errors. Where the wrong tense is used, or a word is split in the middle of a sentence and so on. How is the final product edited?

    By the way your explanation on an ebook is prepared was excellent.


  • Hannah October 10, 2016 at 12:59 pm

    Really great article! Thanks Ali.

    So the biggest limit for ebooks being “enhanced” ebooks are the retailers? And has much changed since 2012 or is the ebook process at Chronicle pretty much the same?


  • Tamara March 28, 2017 at 4:39 am

    I am currently working on my illustrations with a particular fiverr illustrator who only produces e-book illustrations. How can I get my book published once the illustrations are completed. I want published hard copies and e-books.



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