You magically bind a book to a bookshelf, allowing you to remotely read the contents stored within those shelves provided you are on the same plane of existence.

Once the spell has been completed, you can use an action whilst holding the spell book to speak the name of a book stored within the bookshelf. Once the name has been spoken, the pages of the bound spellbook will change to a copy of those within that book, although the dimensions of the book itself do not change.

You can have a maximum of one bookshelf affecting a particular spellbook at any one time. Casting the spell again on either component ends the effect on the other, however you can have more than one bound pair of books and shelves active.