For more than 25 years, Southern California Externships, or SoCalEx (formerly known as GLACE), has supported the teaching and mentoring work of the hundreds of attorneys and judges who volunteer to supervise law students throughout Southern California. SoCalEx's field supervision manual incorporates the joint supervision standards SoCalEx member law schools have developed and highlights common fieldwork issues that are often of interest to students and field supervisors. We hope these materials will be of value to you in your supervision efforts and thank you for your willingness to teach and mentor our students. Your participation in our program as a supervising attorney or judge and educator is our most valued asset.