A collection of recommended add-on packages for LaTeX which have widespread use, and the release candidate formats latex-dev, etc.

This package includes the following CTAN packages:

anysize -- A simple package to set up document margins

attachfile2 -- Attach files into PDF

beamer -- A LaTeX class for producing presentations and slides

booktabs -- Publication quality tables in LaTeX

breqn -- Automatic line breaking of displayed equations

caption -- Customising captions in floating environments

cite -- Improved citation handling in LaTeX

cmap -- Make PDF files searchable and copyable

crop -- Support for cropmarks

ctable -- Flexible typesetting of table and figure floats using key/value directives

eso-pic -- Add picture commands (or backgrounds) to every page

etoolbox -- e-TeX tools for LaTeX

euenc -- Unicode font encoding definitions for XeTeX

euler -- Use AMS Euler fonts for math

everysel -- Provides hooks into \selectfont

everyshi -- Take action at every \shipout

extsizes -- Extend the standard classes' size options

fancybox -- Variants of \fbox and other games with boxes

fancyref -- A LaTeX package for fancy cross-referencing

fancyvrb -- Sophisticated verbatim text

filehook -- Hooks for input files

float -- Improved interface for floating objects

fontspec -- Advanced font selection in XeLaTeX and LuaLaTeX

footnotehyper -- hyperref aware footnote.sty

fp -- Fixed point arithmetic

grffile -- Extended file name support for graphics (legacy package)

hologo -- A collection of logos with bookmark support

index -- Extended index for LaTeX including multiple indexes

infwarerr -- Complete set of information/warning/error message macros

jknapltx -- Miscellaneous packages by Joerg Knappen

koma-script -- A bundle of versatile classes and packages

l3experimental -- Experimental LaTeX3 concepts

latexbug -- Bug-classification for LaTeX related bugs

lineno -- Line numbers on paragraphs

listings -- Typeset source code listings using LaTeX

lwarp -- Converts LaTeX to HTML

mathspec -- Specify arbitrary fonts for mathematics in XeTeX

mathtools -- Mathematical tools to use with amsmath

mdwtools -- Miscellaneous tools by Mark Wooding

memoir -- Typeset fiction, non-fiction and mathematical books

metalogo -- Extended TeX logo macros

microtype -- Subliminal refinements towards typographical perfection

ms -- Various LaTeX packages by Martin Schroder

newfloat -- Define new floating environments

ntgclass -- "European" versions of standard classes

parskip -- Layout with zero \parindent, non-zero \parskip

pdflscape -- Make landscape pages display as landscape

pdfmanagement-testphase -- LaTeX PDF management testphase bundle

pdfpages -- Include PDF documents in LaTeX

pdftexcmds -- LuaTeX support for pdfTeX utility functions

polyglossia -- An alternative to babel for XeLaTeX and LuaLaTeX

psfrag -- Replace strings in encapsulated PostScript figures

ragged2e -- Alternative versions of "ragged"-type commands

rcs -- Use RCS (revision control system) tags in LaTeX documents

sansmath -- Maths in a sans font

section -- Modifying section commands in LaTeX

seminar -- Make overhead slides

sepnum -- Print numbers in a "friendly" format

setspace -- Set space between lines

subfig -- Figures broken into subfigures

textcase -- Case conversion ignoring mathematics, etc

thumbpdf -- Thumbnails for pdfTeX and dvips/ps2pdf

translator -- Easy translation of strings in LaTeX

typehtml -- Typeset HTML directly from LaTeX

ucharcat -- Implementation of the (new in 2015) XeTeX \Ucharcat command in lua, for LuaTeX

underscore -- Control the behaviour of "_" in text

unicode-math -- Unicode mathematics support for XeTeX and LuaTeX

xcolor -- Driver-independent color extensions for LaTeX and pdfLaTeX

xkeyval -- Extension of the keyval package

xltxtra -- "Extras" for LaTeX users of XeTeX

xunicode -- Generate Unicode characters from accented glyphs