Introduction; Part I. KRA: The Knowledge Rule of Assertion: 1. The case for the KRA; 2. Problems for KRA; 3. KRA and sufficiency; Part II. FFAA: A function first account of assertion: 4. FFAA; 5. FFAA and KRA; 6. FFAA and the duty to believe; Part III. Knowledge and Language: 7. KRA and constitutivity; 8. KRA and epistemic contextualism; Appendix A. The value of knowledge; Appendix B. JRA and knowledge first justification; Appendix C. Constitutivity in general; Bibliography.