Other retailers need ePUB format. We're experts.
What Format eBook is Used By iBooks, B&N, Sony and Others?
Every eBook company/retailer other than Amazon uses ePUB format. ePUB stands for "ePUBlication," and it's a universal eBook standard, issued by the International Digital Publishing Forum--the IDPF. The IDPF group meets and determines what is considered "standard" for an ePUB, and it is they who create and maintain "ePUBcheck," which is a tool that's used to check an ePUB for compliance with, and conformance to, those standards.
Barnes & Noble (B&N), iBooks (Apple), Sony, KoboBooks, and the others, all use ePUB-formatted eBooks on their readers and reading apps.
How Can I Create an ePUB file?
Well, very much like Amazon's MOBI format, there are lots of well-meaning folks out there who will tell you that you can DIY. And that isn't necessarily a lie; if you're techy, and you have some pretty good skills (and a fair amount of time to learn), you can create your own ePUB file from a Word, Pages, Wordperfect or other word-processing file. But creating an ePUB file is actually harder, and requires even more knowledge, than creating an Amazon MOBI file.
If your source file is something else--an INDD file, or a PDF--then the likelihood of you successfully DIY-ing are pretty small, as the technical challenges increase arithmetically as the source format becomes more complex.
Do Your ePUBs Pass ePUBcheck?
You betcha! Every ePUB that leaves the Booknook.biz shop is tested against, and passes, the current version of ePUBcheck. If you are planning on utilizing a distributor that uses an older version of ePUBcheck, like Lulu, please let us know in advance, so that we can ensure that your book will pass an older version. If your book doesn't pass ePUBcheck, you won't be able to sell your book at Barnes & Noble (B&N), iBooks, Smashwords, Sony, KoboBooks, or virtually any other e-tailer. ePUBcheck isn't an optional "extra;" passing ePUBcheck is a required element of a competently-crafted ePUB.
...that ePUBs render differently on different devices and retailers. An ePUB can look brilliant on Readium, but AWFUL on something else. Competent, professional bookmakers don't merely test a book on one device; they test on numerous devices. Here at Booknook.biz, we don't have a single e-reader; we have dozens of devices. We want to be sure, when your book leaves our shop, that it's going to work, no matter where you go.
The Bulletproof Guarantee
And just like our MOBIs, our ePUBs are covered by our Bulletproof Guarantee. No weasling, no kidding.