From the back of the book:
Path of the Magi is the essential d20 System sourcebook on Wizards. Sean K. Reynolds, co-author of the Forgotten Realms Campaign Setting, leads an all-star team of authors, including Mike McArtor, W. Jason Peck, and award-winning game designer Jeff Quick in exploration of the life of a wizard, from apprenticeship to iniation and beyond.
The magic-user's path begins with entrance into the University of the Magus, where the initiate learns spell craft, the guilds that master it, and their enemies. In addition to the completely detailed magic college, this book includes new feats based upon the signs of the Zodiac, new spells, equipment and magic items. DMs will find a treasure trove of information to create the ultimate role playing experience for players seeking to create heroes able to command the mysteries of magic.