Presentations with LaTeX: Which package, which command, which syntax?

Typesetting Tables with LaTeX

LaTeX Quick Reference

PSTricks: Graphics and PostScript for TeX and LaTeX

Practical LaTeX

Guide to LaTeX (4th Edition)

Typesetting Mathematics with LaTeX

R Packages: Organize, Test, Document, and Share Your Code

Practical Data Science with R

Advanced R (Chapman & Hall/CRC The R Series)