We present a series of two talks on the International Linear Collider (ILC), a next generation energy-frontier machine in electron-positron collisions operating at center-of-mass energies of 250-500 GeV in the first phase. It aims to search for new physics through precision probes and near-complete coverage of new phenomena within its energy reach. Following the completion of the technical design at the end of 2012, the project is currently in the engineering design phase. The first talk will give an overview of the physics case of the ILC, highlighting the study of the Higgs boson, top quark, and direct searches for new particles. The project status will be briefly reported. The second talk focuses on the ILC detector design and sensor technologies, with aspects of detector optimization. The accelerator design will be also briefly discussed.