Signs are objects/tiles that can be found on the Classic Trilogy and Wonderland Adventures Trilogy in the Wonderland series.
In the Classic Trilogy[]
Signs can be read by simply stepping onto them. Sometimes the text on the sign is a hint for the level or explain a puzzle, while other times it just adds to the level's atmosphere.
In the Wonderland Adventures Trilogy[]
In the Wonderland Adventures Trilogy, the signs are somewhat different. They now look like actual signs instead of just pieces of paper on the ground. They are now read by clicking on them instead.