The document traces the history and evolution of money from 1200 BC to 2001, including the first uses of cowry shells in China in 1200 BC, the introduction of coins in Turkey in the 7th century BC, the invention of paper money in China in the 11th century, the first cheque in England in 1659, the creation of cash registers in 1879, the debut of credit cards in 1950, the advent of digital money in 1995, and the launch of the Euro currency in 2001.
This document presents a collection of optical illusions intended to trick the eye and mind. It includes images that appear to change between two figures depending on perspective, such as a young or old woman. It also includes visual puzzles that challenge the viewer's perception of size, distance, movement and counting of objects. The overall message is that vision can deceive and it's important not to always believe what you see visually.