: More advanced versions expand into three-digit and four-digit predictions, though they are less commonly illustrated than the 2D versions.

: Each entry features a specific image. For example, "Number 35" is often symbolized by a woman and a goat . This visual aid makes it easier for users to recall their dreams and match them to the "correct" number.

: The most popular format, providing 100 pages of illustrations corresponding to numbers 00 to 99.

: "Natural codes" based on rare or unexpected daily events (e.g., an owl entering a house).

: A traditional classification system for objects, animals, and professions.