What are the differences between covenants, bylaws and guidelines?

Bylaws are mutually agreed upon rules for the HOA, while covenants are long-term promises to do something or refrain from something. Our covenants primarily discuss topics such as land and external structures. The bylaws discuss topics pertaining to meetings, members, due payments, delinquency, liens and other rules of this nature for which we are to abide by. The design guidelines and landscaping guideline documents are meant to be examples of what exterior features of the home and landscape should look like in the neighborhood.