Ruby Conference 2007 Advanced Ruby Class Design by Jim Weirich
46:19
RubyConf 2009 - SOLID Ruby by: Jim Weirich
34:06
Mastering the ruby debugger by Jim Weirich
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October CincyRb - Jim Weirich on Decoupling from Rails
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Ruby's Symbols Explained
36:36
Ruby Programming | In One Video
46:53
Ruby Conference 2008 - What All Rubyists Should Know About Threads
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Basic Rake by Jim Weirich
25:42