This document provides an overview of cognition and language from a cognitive psychology perspective. It discusses three main topics: thinking and reasoning, problem solving, and language. For thinking and reasoning, it describes mental images and concepts. For problem solving, it outlines the three steps of problem solving and discusses various problem solving strategies and challenges. For language, it discusses the elements of language including grammar, language development from babbling to age 5, theories of language acquisition, the influence of language on thinking, and issues around bilingualism.