Prices can vary based on the cost of materials, additional features, and resources used to create the functionality and aesthetics of the hollow book. The main functional purpose aims for the containment of valuables, memorable items, or contraband within the cloak of an ordinary book. Thus maintaining privacy and security from unwanted intrusions and/or theft.
The scale of gadgetry used to create the seal of a hollow book's closing properties have ranged from simple to complex. Simple elastic bands, interlocking rope, and other common book closing techniques are used. Other times, hidden magnets do the task as well as the unusual use of complex locking mechanisms that require a lock and key combinations have also been used to keep a book closed.
Material choices used in the creation of the hollow book's body are usually actual books. However, other plastic, metal, cardboard, or paper materials have also been used to either simulate a real book, or to be used as extra features.
Many book safes are handmade. Structures made from real books are sealed and pressed before hollowing the inside pages with a sharp cutting utility. Sealing the back and allowing the front cover to act as a door that can be opened and shut. While other hollow books are made from cardboard cigar boxes, simulating a book on the outside.
In fictional uses of book safes, the title or subject of the book can be symbolic or related to the nature of the object, e.g., hidden money in a copy of The Wealth of Nations. There are a number of cases from films and television series where an item is hidden in the Bible.
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A Just Weight Israel Today https://web.archive.org/web/20070708202401/http://www.israeltoday.co.il/default.aspx?tabid=136&view=item&idx=587 ↩
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Farivar, Cyrus; Jeans, David (10 February 2022). "Hollowed-Out Books, Fake Passports And Burner Phones: What Led To The Feds' Raid On The Crypto Couple". Forbes. https://www.forbes.com/sites/cyrusfarivar/2022/02/10/heather-morgan-ilya-lichtenstein-cat-bitcoin-raid/?sh=654d7423405a ↩