The American Journal of Psychology was the first English-language journal devoted primarily to experimental psychology (though Mind, founded in 1876, published some experimental psychology earlier). AJP was founded by the Johns Hopkins University psychologist Granville Stanley Hall in 1887. The journal has distributed several groundbreaking papers in psychology . The ‘AJP’ investigates the science of behavior and the mind, releasing reports of original research based on experimental psychology, theoretical presentations, combined theoretical and experimental analyses, historical commentaries along with detailed reviews of well-known books.The Journal has published some of the most innovative and formative papers in psychology throughout its history. AJP is a quarterly journal publishes reports of original research in experimental psychology, theoretical presentations, combined theoretical and experimental analyses, historical commentaries, and in-depth reviews of significant books.