For all of you teaching, researching or studying U.S. Federal Income Tax, check out the LRC's Course Guide for Tax Research & Communication.  Find particular sources owned by the LRC and go directly into the online format by clicking the link. While you're on our website, check out another LRC publication series, Research & Information Guides.  There, you'll find several guides tailored specifically to tax, such as Federal Tax: Legislative History Sources.  You'll also find research guides on topics applicable to your tax research, such as federal administrative law research and finding current legislation.