This edition of Antonio Machado's work offers a complete revision of the interpretations advanced by critics on the first version of Soledades (1903). Based on Machado's original edition it will be the only reliable text on the market of this work, the very embodiment of Spanish modernism. It will offer, as well as the text, a substantial analysis of the changes made for the second edition of 1907 that reveal the progressive influence of Modernismo on Machado's conceptions.   Using new theoretical models, the editor has been able to tell us more about Machado's poetic practice, his evolution as a poet and, consequently, more about the development of Symbolism in Spain than has previously been possible.   The text will be useful to specialists of Machado and the period (1890-1910) and to postgraduates and final-year students working on the period.