When we mean to say "a book of the Bible" we'll say just that.
Don't confuse this with "a book of the Bible".
That is, when we say "book" we mean an electronic book created with BookBuilder, which might be a Bible. We almost always intend to include the Bible when we say "books". We'll say "books" or "ebooks" to refer to the electronic books you create using BookBuilder. We'll mention them as necessary but we assume you're not actively creating books for these platforms. While BookBuilder creates books that are compatible with older platforms such as PocketBible for Windows Mobile and MyBible 4.x and 5.x for Palm OS, these platforms are obsolete and won't be a focus of attention here. It generally is a combination of an operating system (OS) and hardware device that the OS runs on. (So "device" could include your desktop computer.) Finally, the word "platform" is used to refer to iOS (iPhone/iPad/iPod touch operating system), Windows (desktop), Android, etc.
We'll refer to your "device" rather than constantly saying "iPhone, Windows desktop, Android phone, etc.". So that we don't have to keep on listing all the compatible readers and versions, we'll refer to these programs which read the books you create with BookBuilder as "readers" or "reader programs" in this document. Laridian ® BookBuilder allows you to create electronic books and Bibles for use in PocketBible on a variety of desktop and mobile platforms. BookBuilder™ Tagging Guide Laridian ® BookBuilder ™ For PocketBible ® Family of Bible Software Tagging Guide