Beginners' overview of using LaTeX; including installation, graphics, bibliographies, and producing PDFs. With sample files, and many links to useful resources.
A guide to LaTeX resources useful to logicians writing papers, presentations and books. In particular there are user guides for bussproofs.sty and beamer.cls.
Several examples of source code and resulting pdf output to introduce novices to LaTeX. From the Physics and Computer Science department of Wilfrid Laurier University, Canada.