ELI5: Explain Like I'm 5

Certs

Certificates are documents that prove that someone has learned something or accomplished a goal. They are usually given out for things like completing a class or passing a test. For example, if you go to school and finish a math class you might get a certificate of completion. This certificate shows that you did the work and completed the class. Certificates are also used in a job setting. Someone might need a certain certificate to prove they have the qualifications to do a certain job. All in all, a certificate is like a special badge of achievement that proves you did something good and that you know what you're doing.