Lateχ(pronounced La-tech) is a free typesetting language commonly used for documents with large amounts of mathematical notation. Its use is nearly universal in mathematics intensive disciplines such as physics, statistics, and engineering. Many ecology journals accept manuscripts in the Lateχ format. Lateχ is a useful skill for anyone who uses sophisticated or abundant mathematical notation, or anyone who collaborates with a Lateχ user. Lateχ is not as straight-forward as a standard word processor, such as Word, but it is not difficult. This one-day training session should be adequate to teach everything that is needed to write a scientific manuscript in Lateχ. In advance of the workshop, I will email instructions for installing Lateχ. Workshop participants should bring a laptop with a Lateχ package installed. We will use one of the many free Lateχ software options available, such as TexShop or MikTex. In the workshop, we will work through exercises. In the process, we will typeset a complete scientific manuscript with a title page, numbered section headings, a table of contents, bold or italic fonts, double-spacing, line numbers, equations, in-line mathematics notation, references, tables, figures and dynamic references to tables, figures and equations. I will conclude the workshop with an overview of some advanced topics, including Sweave: a package that integrates “R” and Lateχ, and bibtex: a reference management system. Throughout the workshop, we will discuss strategies for finding new Lateχ commands as they are needed.