How can I auto expand the first book information field?

By default, each book field is collapsed to make the admin interface more concise.

However, if you prefer you can auto expand the first book box.

First install a plugin that allows you to add CSS to the admin area, such as  Add Admin CSS. Once this plugin is activated, go to Appearance > Admin CSS. Find the box for "Admin CSS" (not the "Files" one) and add in this code:

#ubb-book-info-main .ubb-row {
    display: block !important;
}

Now the first book in the list will always be expanded: