Easter Sunday, 25 April, 1886, marks the beginning of Freud’s private practice as a specialist in nervous illnesses. He had not long returned from his time with Charcot at the Hospice de la Salpêtrière in Paris and brought with him the imprint of the Professor’s views on hysteria. Over subsequent years he conversed about interesting cases with his friend and mentor, Josef Breuer, a respected Vienna physician. Their collaboration materialized into a joint publication, Studies on Hysteria (1895d), which provides the focus of this chapter. Here we find in Volume II of the Standard Edition the ground plan for Freud’s future theorization.