iThink Biology is an open-access, online resource for undergraduate students of biology, developed by faculty at Azim Premji University, Bengaluru. This e-book is rooted in the Indian context, focuses on building the learner's capacities over memorising content, and urges students to explore biological systems through case studies, for a comprehensive and inter-disciplinary approach to studying biology. Through this resource, you can: download annotated research papers, watch video interviews with scientists, and access a range of external educational resources on the world wide web. iThink Biology carries the dynamism of a digital book, content that is relevant to the learner’s socio-geographical surroundings, and language that is easy to follow.