A nice touch is the elastic band to keep this activity book closed.
The Power of a Praying® Husband – 0736905324, Stormie Omartian, paperback
This activity book has a section where you decode ancient symbols.
This activity book includes a code-breaking section for secret messages.
This activity book includes spot-the-difference games that sharpen your focus.
This activity book includes logic puzzles that make you think outside the box.