ElliottWave book

Elliott discovered that the ever-changing path of stock market prices reveals a structural design that in turn reflects a basic harmony found in nature. From this discovery, he developed a rational system of market analysis.
Elliott isolated 13 patterns of movement, or "waves," that recur in market price data and are repetitive in form but not necessarily repetitive in time or amplitude. He named, defined and illustrated the patterns. These patterns are Elliott waves.
These Elliott waves link together to form larger versions of those same patterns. They, in turn, link to form identical patterns of the next larger size, and so on. The result is the illustration you see below.