Could you please suggest the best way to get started with Sinatra for a beginner who just knows HTML/CSS?

Most Sinatra tutorials I've found seem to deal either with very specific hacker-interest cases ("How to combine Sinatra with x to do y better") or teach you how to do specific basic stuff and then stop short, promising more tutorials later.

I'm looking for something that takes me from Part 1 to Part 10, so that I can really learn to use Sinatra to make cool stuff that average people would like. Maybe this means one source, or maybe a list of multiple sources in order. It would be great to get a list like:

1. Read this 2. Read that 3. Try this 4. Now you can do that 5. Get really good at #4, then read this