Part of what distinguishes science from other ways of knowing is that scientists show their work. Yet when probed, it turns out that much of the process of research is hidden away: in personal files, in undocumented conversations, in point-and-click menus, and so on. In recent years, a movement toward more open science has arisen in psychology. Open science practices capture a broad swath of activities designed to take parts of the research process that were previously known only to a research team and make them more broadly accessible (e.g., open data, open analysis code, pre-registration, open research materials). Such practices increase the value of research by increasing transparency, which may in turn facilitate higher research quality. Plus, open science practices are now required at many journals. This chapter will introduce open science practices and provide plentiful resources for researchers seeking to integrate these practices into their workflow.