This open access edited volume presents a series of studies utilizing a variety of linguistic research techniques to investigate areas of language education, acquisition and assessment, contemporary political debate, modern and historical print media, and clinical language disorders, in the Indonesian context. In doing so, the authors provide a rich and diverse overview of current research in the fields of linguistics and applied linguistics. The initial section focuses on research conducted in educational settings, focusing on English-medium instruction (EMI), reading assessment, discovery-based learning, cultural elements in textbooks, and pre-service teacher preparation in Indonesia, offering recommendations for improving language education. The second section demonstrates the applications of corpus linguistics, focusing on collocation patterns in different languages, lexical use and context of rhetorical markers, and authorship determination. A third section presents investigations related to aspects of historical and contemporary language use in a variety of contexts, including advertisements, political debate, Indonesian print media, and translanguaging and multilingual writings, discussing the social and cultural dimensions of language use in Indonesia. The final section focuses on clinical linguistics, investigating the relationship between language disorders and language use, including spoken narratives provided by patients with Alzheimer's and the structure and time reference use of agrammatic speakers, with valuable insights into the understanding, diagnosis and treatment of language disorders. Brought together in a single volume, the chapters illustrate how linguistic analysis can be applied across a variety of disciplines and research sites. The volume is relevant to linguists, educators, sociologists, historians, and members of the medical community with particular interest in the Indonesian context.