Another good "non-rails" Ruby book is "Enterprise Integration with Ruby"[0]. Unfortunately, it's a bit dated (2006), so I am sure some of what Schmidt details

Another good "non-rails" Ruby book is "Enterprise Integration with Ruby"[0]. Unfortunately, it's a bit dated (2006), so I am sure some of what Schmidt details is no longer supported/valid. Still, a cool book IMHO. 0 - https://www.amazon.com/Enterprise-Integration-Ruby-Maik-Schmidt/dp/0976694069 https://www.amazon.com/Enterprise-Integration-Ruby-Maik-Schm...