Learning is the process of acquiring new knowledge and skills through experience. It begins at birth and continues throughout life through interactions with the environment. There are several types of learning, including associative learning like classical and operant conditioning, as well as observational learning, imprinting, and play. Learning is affected by both external factors like economic status and physical environment, as well as internal factors like motivation, attention, and emotions. Memory and retention are also influenced by learning activities, testing, and guidance over time.