Optical Illusion Puzzle a Day is filled with 365 optical illusions and visual puzzles - one for every day of the year. Test your mind with these brain teasers!
Puzzles include:
- Why do these squares look uneven?
- Which is the highest wall?
Additional Information:
- Recommended ages 10+
- 11.3 x 11.3 x 4.7 cm
- Pages are undated, starting at 'Day 1'