See the online study aids for Jurisdiction & Judgments (Civil Procedure)
Treatises - Scholarly treatment of an area of law; often many volumes and usually updated annually. These titles were originally authored by big names in the field. We even refer to them by the name of the author.
Wright & Miller, Federal Practice & Procedure
The Center for Computer-Assisted Legal Instruction (CALI) provides online interactive tutorials on legal topics. See a law librarian at the Reference Desk for your Mercer's access code.