Here is a good read!!

http://www.amazon.com/gp/aw/d/B00I2HFVUW?cache=8c72f93aed97cecfa634c558612ac705&pi=SY200_QL40#ref=mp_s_a_1_1&qid=1392230379&sr=1-1

You may also find me at:

http://gracengails.blogspot.com/2014/02/1-ch-23-join-with-sl-st-sc-one-row-2-ch.html?m=1