Faith & Practice is the written record of the collective sense of the Spirit for a yearly meeting body. Most books of Faith & Practice are continually revised and updated and include advices on procedures within the faith, current practice for conducting the yearly meeting and monthly meeting business and numerous quotations from prominent Friends on belief, worship, concerns, leadings, and testimonies. This is an essential text for any Friend within a yearly meeting.
You can read it online or purchase a copy of Philadelphia Yearly Meeting's 2018 edition of Faith and Practice at QuakerBooks.