"Psychopathology of Everyday Life" by Sigmund Freud is a work published in 1901. It explores how seemingly trivial mental lapses—forgotten names, slips of the tongue, random errors—reveal hidden workings of the unconscious mind. Freud argues these everyday mistakes aren't accidents but meaningful symptoms of unconscious thoughts and impulses. Through numerous examples, he suggests the boundary between normal and neurotic behavior is surprisingly fluid, making a case that we are all, in some measure, influenced by forces beyond our conscious awareness.