Tap + button on the top bar, in "Add Book" screen, select layout type, type the title and author.
Create New Book
Tap settings button on the top bar, then select "cover image" to launch cover image editor. You can edit cover image in WYSIWYG interface.
Edit Cover Image
Tap "New Page" icon on the top bar (next to pages button), and then select "Page" to add new page.
Add New Page
Tap page title on the top bar. If your device is in landscape mode, you can select "Edit Left Page Title" or "Edit Right Page Title".
Change Page Title
Tap Pages button to launch pages screen. In Pages screen, tap edit button on the top bar to change to edit mode, finally select pages, tap delete button to delete pages, or tap copy button to duplicate pages.
Add New Element
Tap + button on the bottom bar on the page. Select one of the element type to add new element.
In Add Element menu, tap text and then tap paragraph.
Add New Paragraph
Add New Photo
In Add Element menu, tap image. There are many options to import photos. When you tap photo library, you can browse and select multiple photos from photo library.
Add New Video
In Add Element menu, tap video. There are many options to import videos. When you tap YouTube video, you can search video by keywords or use video link to add YouTube video.
Add New Audio Recording
In Add Element menu, tap audio and then tap audio recording.
In Audio Recording screen, tap start button to start recording. At the same time, you can browse the current page's content.
Tap element to show action menu. You can tap edit to edit element, tap position to change position value manually, tap delete to delete element.
Edit Book Information
Tap settings button on the top bar and the select Book Information.
In Book Information screen, you can change book title, author, publisher, etc.
Edit Book Style
Tap settings button on the top bar, and then select Book Style. In Book Style screen, you can edit global font name, font size, etc. These settings are applied to the current book.
After finishing your book, tap Publish button on the top bar. In Publish screen, select EPUB and then tap Generate Book button to generate book at the first time. If you update content of the book, tap Re-generate Book button to regenerate book.
In Generate Book screen, you can change option if you want. Finally tap Start Processing button to start generation of book.
After generating book, back to Publish screen. Now, you can tap Open Book In button to open book in EPUB readers, tap "Upload to Google Drive" to upload file to specific folder, etc.