To find information on any of the 2,500 symbols contained in the encyclopedia, use this step-by-step guide. Specify the graphic characteristics of the sign you are looking for simply by answering the questions.
If you find it difficult to decode the characteristics of a sign, do not despair. Most of the time it helps to draw the sign you want to read about on a piece of paper. Then symmetries and other elements are easy to see. Help is also available.