Considering this topic, I highly recommend these two books for starters.

https://www.amazon.com/Unseen-Hand-Introduction-Conspiratorial-History/dp/0961413506/ref=sr_1_2?ie=UTF8&qid=1483007364&sr=8-2&keywords=ralph+epperson

https://www.amazon.com/New-World-Order-Ralph-Epperson/dp/0961413514/ref=pd_bxgy_14_img_2?_encoding=UTF8&pd_rd_i=0961413514&pd_rd_r=F98GQE3SK2B2730R8MSA&pd_rd_w=OAHHZ&pd_rd_wg=dOoiP&psc=1&refRID=F98GQE3SK2B2730R8MSA