Entropy (information theory)

Entropy is a measure of how much information is in something. For example, a book has a lot of information in it, so it has a high entropy score. On the other hand, a blank piece of paper has very little information, so it has a low entropy score. Entropy is important when it comes to information theory, which is the study of how information works and how to store it. Entropy helps us figure out the best ways to store and transmit information.