Books on the workings of the mind fascinate me and whilst many repackage the same message, The Eureka! Enigma, by Ron G. Holland offers a fresh approach that is easy to understand and practice.  The author suggests that anyone can come up with Eureka ideas and solutions to problems, anytime and at will, by cracking the codes of our mind, much like those of a bio-computer. Whilst I am not a technical person, I found the concepts easy to follow and had positive results almost instantly.