This chapter examines the processes underlying learning and skill acquisition, emphasizing both associative and observational forms of learning. It begins with classical conditioning, where a neutral stimulus becomes associated with a natural response, and operant conditioning, in which behaviors are modified through rewards and punishments. The discussion then extends to observational learning or social learning theory, highlighting how individuals acquire new behaviors by watching others, with an emphasis on cognitive factors such as attention, retention, reproduction, and motivation. The chapter differentiates between implicit learning, an unconscious process underlying skills such as riding a bike, and explicit learning, which involves deliberate, conscious effort to acquire knowledge. Furthermore, it explores cognitive skill development and the progression to expertise through stages marked by deliberate practice, automaticity, and superior pattern recognition. Concepts such as the transfer of learning, scaffolding, and guided instruction are discussed as mechanisms that facilitate the application of skills across contexts. Finally, the integration of modern technologies—educational software, online platforms, VR/AR, and AI-driven tutoring—demonstrates innovative approaches to enhancing learning experiences and accelerating skill mastery.