These are her earliest, published novels. The introduction is a bit odd as the author hasn't read much le Guin including her most popular, award winning books other than The Wizard of Earthsea.
I'm not much of a critical reader, but these definitely do not have the philosophical depth (or I don't have the philosophical depth to pic up on it) of The Dispossessed and friends, but they are interesting and well written.
https://www.amazon.com/Worlds-Exile-Illusion-Rocannons-Illus...