Frontmatter -- Contents -- Author biographies -- 1 Introduction to Language Learning and Leisure -- Section 1: The nature of informal second language learning -- 2 Toward an anthropology of Informal Digital Learning of English (IDLE) -- 3 Does informal mean implicit? -- 4 Smart devices and informal language learning -- Section 2: Language outcomes -- 5 Informal second language learning and EFL learners' spoken use of discourse markers -- 6 Influence of television series on pronunciation -- Section 3: Learner activities -- 7 Mapping space, leisure and informal language learning in the lives of international students in Australia -- 8 Learner perspectives on informal L2 vocabulary learning -- 9 Mediation in informal language learning activities outside of the classroom -- 10 Linguistic risk-taking and informal language learning in Canada and Austria -- Section 4: Psychological dimensions -- 11 Why does IDLE make EFL learners gritty? -- 12 Preservice English language teachers and informal digital learning of English (IDLE) in Kazakhstan -- 13 Learner profiles and ISLL trajectories -- Section 5: Engagement -- 14 Behaviour, thoughts, and feelings -- 15 Learner engagement and learner change under lockdown -- 16 Engaging with L2 Netflix -- 17 Conclusion -- Index