Here are some links to my two economics textbooks published by Kendall Hunt.
https://he.kendallhunt.com/product/introduction-macroeconomics-0
Introduction to Macroeconomics
https://he.kendallhunt.com/product/introduction-microeconomics-0
Introduction to Microeconomics
Both texts are available in the cheaper e-book format and will provide a good
reference for economic theory. Also, both texts are written at the principles or introductory level and do not presuppose any prior economic knowledge. 
Of course if you really want to have your political economy socks blown off you can read my novel Bob the Bubble Gum Spider which you can acquire at
