Karen Horney
Karen Horney’s most recommended work, by far, is “Neurosis and Human Growth (1950).” Other works such as “Self-Analysis (1942)” and “Our Inner Conflicts (1945)” are only significant for showing the development of Horney’s thought and research before reaching the pinnacle of “Neurosis and Human Growth,” and are not particularly worth reading compared to “Neurosis and Human Growth.”
Conversely, “Neurosis and Human Growth” is essential reading because it deepens, expands, and integrates the content of her earlier works.
Original title:
Neurosis and Human Growth: The Struggle Towards Self-Realization
Published in the USA (Norton) (1950)
There have been two Japanese translations, but unfortunately, both are out of print. They may be available in libraries, etc.