I suggest you read http://guides.rubyonrails.org/getting_started.html http://guides.rubyonrails.org/getting_started.html then I recommend sitepoint Patrick Lenz

I suggest you read http://guides.rubyonrails.org/getting_started.html http://guides.rubyonrails.org/getting_started.html then I recommend sitepoint Patrick Lenz - Simply Rails, although it is outdated (rails 2.0.2) but it have a solid simply background on rails knowledge.