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

Dictionary template
This template creates a dictionary with a two-column layout and clear headings delimiting different letters. The header on each page contains the first and last word on that page, making for easy navigation. Converting your current dictionary information to use in this template is easy as a single command specifies the addition of each word. By default, this line has four arguments for the: word, pronunciation, classification and definition. Each can be customized as required (e.g. bold, italic, sans-serif, etc) or other arguments can be added. When you want to add your own content in bulk, simply write a regular expression to split it into these arguments and copy it into the template.
This template has been downloaded from LaTeXTemplates.com
Original author:
Vel (vel@latextemplates.com) inspired by a template by Marc Lavaud
License:
CC BY-NC-SA 3.0
Vel (LaTeXTemplates.com)

Simples Experimentos com Algoritmos Genéticos
(Um bom exemplo de paper no estilo LNCS em português do Brasil)
Esse trabalho analisa o efeito da aplicacão de diferentes valores nos parâmetros para resolução de problemas usando algoritmos genéticos. Um algoritmo simples é usado em um problema trivial permitindo um grande número de experimentos em pouco tempo e simplificando a análise.
Ronie Uliana

字谜 (Chinese Word Riddle Flashcards)
Chinese word riddle flashcards, using the flacards package. The riddles were taken from here.
LianTze Lim

Chinese & Japanese Traditional Colour Names
xcolor names can contain CJK characters! So here are some Chinese and Japanese traditional colour names like 丁香色, 御召御納戸 . CJK-related packages not required if your document doesn't need to display any CJK text.
LianTze Lim

Setting Parallel Texts with reledmac and reledpar
This file provides two minimal examples of typesetting parallel texts with reledmac plus reledpar. The first minimal example is parallel typesetting in columns, the second one is parallel typesetting in pages.
Maïeul Rouquette (uploaded by LianTze Lim)

algorithmicx (algpseudocode) example
An example using the predefined algpseudocode command set from the algorithmicx package, for typesetting pseudocode or algorithms.
LianTze Lim

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

Universidad Nacional Presentation
A Beamer presentation with the Universidad Nacional de Colombia theme, modified from the Feather beamer theme.
German Dario Alvarez Rodriguez

Ukázkový soubor pro workshop České Budějovice
Ukázkový soubor pro účastníky workshopu na konferenci v Českých Budějovicích.
(Sample file for workshop participants at a conference in the Czech Budejovice.)
Roman Plch