Inquiry is covered by major indexing systems including: Arts & Humanities Citation Index; Current Contents/Arts & Humanities; Humanities Index; International Bibliography of the Social Sciences; International Current Awareness Services; Philosopher's Index; Sociological Abstracts.
 
Representative Special Issues and Symposia

Marx and Alienation (1963); The Status of Psychoanalytic Theory (1964); Conflict and Violence (1964); Kierkegaard (1965); Philosophy in Eastern Europe (1966); Functionalism (1966); Spinoza (1969); Action (1970); Chinese Philosophy (1971); Rights and Political Action (1971); Mental Health (1972); Animal Rights and Human Obligations (1979); Psychophysical Connection (1981); Alasdair MacIntyre's After Virtue (1983-84); Content and Consciousness (1984); Jon Elster's Making Sense of Marx (1986); Patricia Smith Churchland's Neurophilosophy (1986); Ted Honderich's A Theory of Determinism: The Mind, Neuroscience, and Life-hopes (1989); Charles Taylor, Sources of the Self (1990); Technology and Human Values (1992); Daniel C. Dennett's Consciousness Explained (1993); Objectivity and Ethics (1999); Andrew Feenberg's Questioning Technology (2001); Robert Pippin's Henry James and Modern Life (2002); New Work in Kant Studies (2003); Vincent Descombes' The Mind's Provisions (2004).