This special issue ponders a detailed and contemporary analysis of the theoretical underpinnings of short-term and working memory. Articles focus on short-term memory for phonological, semantic, and spatial material, on executive function and on short-term forgetting. The empirical perspectives include the neuroimaging of short-term memory, short-term memory development and the neuropsychology and neurobiology of memory, in addition to laboratory-based experimental studies. Together, these articles identify significant current models and approaches to short-term and working memory, providing a broad set of perspectives which illustrate the wide impact of working memory on the understanding of human cognition.