We present, at the end of this section, the first thorough revision of our “Instructions to Contributors” in some years. The old version had accumulated archeological layers of revision that led to unclarity of meaning and infelicity of style; and it had come to terms in only a marginal way with the changed realities of online submission and digital files. Both problems, we hope, are now substantially corrected. We also include new language on replicability and verifiability, which many readers have urged upon for some time and which, in our view, comports well with the ongoing efforts of the American Political Science Association task force (co-chaired by Arthur Lupia and Colin Elman) on these matters. We have also tried to attune our language, to the extent possible, to that already in place at such journals as the American Journal of Political Science and the Quarterly Journal of Political Science. We welcome comments and criticism, and we of course reserve the right to make further emendations in light of feedback and experience.