Ebook format

There are a bunch of different formats out there for ebooks, but the two most common ones are EPUB and PDF. Here's a quick rundown:

EPUB (short for Electronic Publication) is a flexible format that can reflow text to fit the size of the screen you're reading on. This makes it ideal for e-readers, tablets, and smartphones. EPUBs can also include images, audio, and even video.

PDF (Portable Document Format) is a more universal format that preserves the layout and formatting of the original document. This is great for ebooks with a lot of illustrations or where you want the design to stay exactly the same no matter what device you're reading on. However, PDFs don't reflow text, so they can be cumbersome to read on small screens.

Here are some other ebook formats you might come across:

MOBI (Mobeipocket): This is a format that was once popular with Kindle devices, but Amazon now uses its own proprietary format, AZw.

AZW (Amazon Kindle Format): This is the format used for ebooks sold on Amazon Kindle devices.

TXT (Plain Text): This is a very basic format that only contains text. It's not ideal for ebooks with a lot of formatting or images, but it's universally readable on any device.

Ultimately, the best format for an ebook depends on what you plan to do with it. If you're self-publishing and want your ebook to be widely readable on different devices, EPUB is a good choice. If you're creating a content marketing ebook with a lot of design elements, a PDF might be a better option.