Had to buy and read for a class years ago.

Product Description
Part of the Longman “Library of Primary Sources in Philosophy,” this edition of Mill's On Liberty is framed by a pedagogical structure designed to make this important work of philosophy more accessible and meaningful for readers. A General Introduction includes biographical information on Mill, the work's historical context, and a discussion of historical influences. Annotations and notes from the editor clarify difficult passages for greater understanding. A bibliography gives the reader additional resources for further study.