"Second Language Acquisition -- Learning Theories and Recent Approaches" will aim to present the process of learning an additional language apart from one's native language. The process of understanding, writing, and speaking another language with fluency involves complex intellectual and emotional responses as well as continuous information processing abilities. A variety of perspectives is needed in order for learning to take place. Many factors, both internal and external, are involved in determining why some learn a second language at a faster rate than others. With an internal or external focus of attention, various linguistic techniques have explored the basic questions about SLA. With the ability to covey and structure information in a second language, there is a need for what is being learned to be viewed from various perspectives. The focus on continuous natural UG capability for language learning versus communicative processing requirements differs among viewpoints on how SLA develops. This book intends to provide readers with language acquisition, language comprehension, language development, language processing, and psychological and social variables, which have been largely excluded by purely language approaches.