Light perception is an essential process by which plants perceive and react to the environment. This session shall emphasize the functions of photoreceptors like phytochromes, cryptochromes, and phototropins in controlling plant growth. Participants will discover how plants perceive the quality, intensity, and duration of light to drive photosynthesis and development. The session shall also emphasize phototropism, where plants curve towards light, and photomorphogenesis, which influences seedling growth. Researchers will present circadian rhythms regulated by light cues, making plants coordinate their physiology with day-night cycles. The molecular machinery of light signaling pathways will be thoroughly explained as well. Particular emphasis will be placed on the role that light perception plays in controlling flowering time, seed germination, and shade avoidance. Agricultural uses, including the use of artificial lighting to maximize greenhouse plant growth, will also be addressed. Through interfacing molecular biology, ecology, and agronomy, this session provides in-depth understanding of plant-light interactions.