What is the difference between an ideogram and a pictogram in terms of their visual representation and communication purposes?

An ideogram is a symbol that represents an idea or concept, often abstract or complex, while a pictogram is a simple picture that represents a specific object or idea. Ideograms are more symbolic and can convey deeper meanings, while pictograms are more literal and straightforward in their representation. Both are used for communication purposes, but ideograms are more versatile and can convey more nuanced information.