Stress relieving can be done in several ways such as: running, yoga, swimming or even just something simple like doodling or painting.
Few good books if you really want to look into meditation are: http://www.amazon.com/Wherever-You-There-Are-Mindfulness/dp/... http://www.amazon.com/Minute-Meditation-Quiet-Mind-Change/dp... http://www.amazon.com/Book-Secrets-Keys-Love-Meditation/dp/0...