Systems & Methods booklets from the 1970's or 80's. this was a series of 45 books(about 80 pages each):all 45 are in this collection: that were published by The GamblersBook club from america. It had a number of different editors, Howard Schwartz,and huey Mahl among them.They were mainly to review all the systems published at the time,which is a bit out of date now,but they also contained many articles of interest to help the bettor make money at both horse racing and at the casino.all in vg condition.