Spectrum: Essays Presented to Sutan Takdir Alisjahbana on His Seventieth Birthday is a commemorative volume honoring one of Indonesia’s most influential intellectuals, writers, and cultural figures. This collection brings together a wide range of essays by scholars, writers, and colleagues from various disciplines, reflecting on Alisjahbana’s vast contributions to literature, language development, philosophy, and national identity. The essays cover diverse topics — from literary criticism and linguistics to cultural theory and modernity — mirroring the breadth of Alisjahbana’s own interests and impact. This volume not only celebrates his legacy but also offers deep insights into the intellectual and cultural movements that have shaped modern Indonesia.