Read Loving Common Lisp, or the Savvy Programmer's Secret Weapon | Leanpub
Book that introduces Common Lisp.
Common Lisp: A Gentle Introduction to Symbolic Computation
Free book that should be a good introduction to Common Lisp for many people.
Home · The Julia Language
Manual for Julia 1.1.
Fortran - Wikibooks, open books for an open world
Online book that contains a good introduction to Fortran.
Write yourself a git
Learn how git works, by writing a git.
Rust programming language
Becoming Productive in Haskell