SpectroscopyholographyX-ray interferometrygravitational waves detection. These are some of the topics that will be explored at the Winter College in Interferometry and Applications in Modern Physics that will be held from 2-13 February at ICTP. The College is organised in co-operation with the International Commission for Optics (ICO), Optical Society of America (OSA), International Society for Optical Engineering (SPIE), and International Society on Optics Within Life Sciences (OWLS). About 90 participants from more than 30 countries will be in attendance.