The scope of unconscious processing has long been, and still remains, a hotly debated issue. This is driven in part by the current diversity of methods to manipulate and measure perceptual consciousness. We report 10 recommendations from a group of researchers representing a range of theoretical backgrounds, on how to design, analyze, and report the results of studies on unconscious processing. We also discuss a set of outstanding issues on which more research is necessary. The recommendations are envisioned as a set of “best practice” principles that serve as a guide for studying unconscious processing. While they are likely to change following theoretical and methodological development, at this point they are important for helping researchers make more informed decisions when designing experiments that test for unconscious processing, and thereby lead to a more convergent corpus of knowledge about the extent – and limits – of unconscious processing.