Emojis are pervasive… they have become widespread on messaging apps, on social networking sites, and even in offline discourses (e.g. billboards, films, printed ads and so on). A substantial amount of bibliography refers to emojis now, but it has hitherto failed to address their functions and interpretations in purely pragmatic terms, explicitly analysing how they are intended and inferred in context, an endeavour whose accomplishment suits pragmatics, relevance theory and its application to internet-mediated communication under cyberpragmatics (Yus 2011, 2021), as this book aims to show. The book will mainly focus on how emojis are inferred both when appearing by themselves and when attached to accompanying texts. The few existing books on this topic tend to address semiotic aspects or the visual impact of emojis, rather than underline the important role that they play in the eventual interpretation of the messaging text or the social media post/comment to which they are attached.