Michael Hartl's Rails Tutorial (https://www.railstutorial.org/ https://www.railstutorial.org/) leads you through Ruby, Rails, Git, and deployment to Heroku thro

Michael Hartl's Rails Tutorial (https://www.railstutorial.org/ https://www.railstutorial.org/) leads you through Ruby, Rails, Git, and deployment to Heroku through two very small projects and one related larger project that takes up the bulk of the book.