Computer-Assisted Legal Instruction The Center for Computer-Assisted Legal Instruction (CALI) has a website which hosts more than 900 Lessons in 30 legal topic areas. Many students find the lessons of value as reinforcement of principles taught in the classroom. Columbia Law School students who wish to use the CALI lessons on the web will need to register and enter the school's authorization code. Email the IT Helpdesk @ email@example.com if you are a Columbia Law School student and need to know the authorization code. During the registration process you will also create your own password. In subsequent visits to use lessons, you will only need to enter your email address and your password. To register, go to the CALI website and click on the "create new account" link. More information about registering for CALI lessons can be found in this CALI FAQ: How Can I Get Access to CALI Lessons and Other Resources?