By-laws widely vary from organization to organization, but generally cover topics such as the purpose of the organization, who are its members, how directors are elected, how meetings are conducted, and what officers the organization will have and a description of their duties. A common mnemonic device for remembering the typical articles in by-laws is NOMOMECPA, pronounced "No mommy, see pa!"[10] It stands for Name, Object, Members, Officers, Meetings, Executive board, Committees, Parliamentary authority, Amendment.[10][11] Organizations may use a book such as Robert's Rules of Order Newly Revised for guidelines on the content of their by-laws.[12] This book has a sample set of by-laws of the type that a small, independent society might adopt.[13]