Archive RSS Email

Free bonus screencast on Haml

Apr 8, 2011 • posted by Michael Hartl

As a free bonus to buyers of the print edition of the Ruby on Rails 3 Tutorial (as well as to anyone who buys any products directly from the Rails Tutorial website), I have made a special informal screencast on Haml, an awesome templating language that is a drop-in replacement for Embedded Ruby. The video runs nearly an hour and covers most of the basics of Haml, including installation, syntax, and even some gotchas.

Purchasers of the print edition should enter their contact information at the bonus screencast page, together with a piece of information whose answer appears in the book. Purchasers of the PDF or screencasts should check their email for a special message or check their original download page for a special link.

I hope you enjoy this bonus screencast!

Michael Hartl

I’m Michael Hartl—author, educator, and entrepreneur. I’m probably best known as the creator of the Ruby on Rails Tutorial, a book and screencast series that together constitute one of the leading introductions to web development. Once called his “favorite book” by Wikipedia founder Jimmy Wales, the Ruby on Rails Tutorial currently has over 150 5-star reviews at Amazon. I’m also (in)famous for creating Tau Day and The Tau Manifesto, which have inspired an international movement dedicated to the proposition that “pi is wrong.” (For example, as a result of The Tau Manifesto, MIT releases their admissions decisions each year at “Tau Time” (6:28 p.m.), and typing tau/2 at Google yields 3.14159…) Finally, I’m a founder of Softcover, a publishing system and sales platform for technical authors, which among other things powers both The Tau Manifesto and the Ruby on Rails Tutorial.

I’m a graduate of Harvard College and have a Ph.D. in Physics from Caltech, where I studied black hole dynamics and was an award-winning instructor in theoretical and computational physics. I’m also an alumnus of Y Combinator, the entrepreneur program that has produced companies such as Dropbox and Airbnb. (Alas, my own Y Combinator startup was neither Dropbox nor Airbnb.)