Share: Title:Essential Ruby Libraries: Introduction Duration: 1:52 Plays: 624 views Published: 9 years ago Download MP3 Download MP4 Simillar Videos ▶️ 2:44:21 What Every Photographer Should Know About Lenses 624 views • 6 years ago ▶️ 1:03:05 Graphic Design Basics | Free Course 624 views • 1 year ago ▶️ 10:21 Adobe: A Disgusting, Criminal Company 624 views • 5 months ago ▶️ 47:30 Advanced Photoshop Techniques | Free Course 624 views • 3 months ago ▶️ 7:19 The Psychology Of Fonts | Fonts That Evoke Emotion 624 views • 1 year ago