My Ruby book for beginners print edition is out. You may get it here
https://www.amazon.com/dp/1796378429/ . Please note that free web version
is available here http://i-love-ruby.gitlab.io/ . This edition is for those
people who love to hold paper in their hands.
And thank you to all those who gave me encouraging words and critism, its
helping me top improve every day. I will work on my book more to bring
Design Patterns topic to my print edition soon.
Karthikeyan A K