Conceptual therapy seeks to eliminate from our vocabulary of concepts those that are conceptually pathological. The very use of such concepts—which is much of the time—brings about dysfunctional thinking: thought, that is to say, that leads us astray, paving the way for beliefs and claims to knowledge that are fundamentally nonsensical. A therapy for such concepts may be likened to holding a selective sieve through which are poured the ideas with which we attempt to make sense of the world, allowing the sieve to filter out those that would otherwise infect our thinking with meaninglessness.

Conceptual Therapy: An Introduction to Framework-relative Epistemology was written by the author as an introductory text for university classes in which he taught applied skills in epistemological analysis.