Copyright law protects original creative works from being used or distributed without permission. It prohibits both direct copying and plagiarism. Fair use allows for limited use of copyrighted works for educational purposes if credit is given and it does not damage the commercial value, such as short excerpts or up to 10% of certain media. Plagiarism, taking someone else's work and passing it off as your own, has serious academic and legal consequences like failing grades, expulsion from school, and fines. When using copyrighted material in presentations, everything must be properly attributed and distribution guidelines followed to avoid plagiarism.