The Laws is Plato's last and longest dialogue, and the only one in which Socrates does not appear, unless indeed he is the mysterious Athenian Stranger who joins the Spartan Megillos and the Cretan statesman Clinias. While it is not a dialogue one would choose as introduction to Plato, for serious students of his political theory it is an essential counterpart to the Republic, presenting an apparently more realistic set of proposals than the earlier dialogue, prefiguring the mixed constitution advocated by Aristotle, Polybius and Cicero. Plato's final word is, in the eyes of some, the product of a man disillusioned by his attempts to put his political ideals into practice at the courts of the tyrants of Syracuse.
Free Online and Downloadable Texts
Gutenberg: Laws by Plato, translated by Benjamin Jowett, multiple formats.
University of Adelaide (Internet Archive): The Laws, translated by Benjamin Jowett. EPUB, HTML and MOBI formats.
Wikisource: The Laws (Plato), translated by Benjamin Jowett. Online text.
Librivox: The Laws - public domain audiobook.
PhilPapers: Plato - Laws - bibliography with open access option.
Wikipedia: The Laws (Dialogue).
The Great Conversation: Further reading at Tom's Learning Notes
Plato: The Republic.
Aristotle: The Politics.
Ancient Greek resources: Learn to read Greek classics in the original.
Bloom's Western Canon: Plato's Dialogues are listed.