Examples — Recent
Examples of powerful LaTeX packages and techniques in use — a great way to learn LaTeX by example. Search or browse below.

Example of dynamic figure generation from raw data files
Visualization of chemical experiment data with Tufte style axes, which demonstrates the ability of LaTeX to dynamically generate figures from raw data files.
This plot uses two data files and does some calculations in pgfplots to standardise them. It shows 'scan rate normalised cyclic voltammograms', and could more generally be used for 'cyclic voltammetry' results.
Original source: http://pgfplots.net/tikz/examples/cyclic-voltammetry/
Joseph Wright

Inference Rules and T-diagrams with the semantic Package
Some examples of typesetting inference rules and T-diagrams using the semantic package.
LianTze Lim

LaTeX Portrait Poster Template
LaTeX Portrait Poster Template

Venn Diagrams in LaTeX
Venn Diagrams in LaTeX

Package Test: algorithm/algorithmic
Package Test: algorithm/algorithmic

Tikz UML2 Activity Diagram and Mathematical Block Diagram
Tikz Example for UML2 Activity Diagram and Mathematical Block Diagram
Martin Hünermund

Resume example
Resume example for quora user
umayah

Example of using wiki markup in LaTeX documents
A simple example demonstrating how to use some wiki markup syntax in LaTeX, using wiki.sty from the nicetext bundle. Be careful — not everything works, and some commands may break! See http://mirrors.ctan.org/macros/latex/contrib/nicetext/doc/wikicheat.pdf for a cheat sheet. If you're looking for markdown, check out this example!
LianTze Lim

Example Venn Diagram with isolated areas filled
This example helps to show how the isolated areas of a Venn diagram can be filled / coloured.
It was created as part of this answer on TeX StackExchange.
Other options for creating Venn diagrams with multiple areas shaded can be found in the Overleaf gallery via the Venn Diagrams tag.
John Hammersley