Susan Cartier Liebel is filling an unlikely, but unmistakable gap in legal education: teaching about the practice of law. Her Solo Practice University offers more than 600 courses from more than 55 faculty members on the practical how-to’s of running your own law firm. With a record number of lawyers entering practice for themselves, and with little or no instruction from law school on how to run a law practice, SPU may be more important than ever.