Make it Simple to understand

As I am in the process of cleaning out my grandmother's house, I come across this collection of books, which were my father's from the late 1950s. I am unsure if Dad had a complete set, but I will continue to look and clean and see if there are any more where these came from.  Thes books cover a variety of different subjects and topics, from English to Economics, even how to play bridge! These were published in the late fifties and early sixties. I saw the Economics book and thought of when I took Economics during my Sophomore year of High School. I think that these would be great for homeschooling, especially during these times of quarantine, and the issue of returning to school in September is brought up around the country and is a very hot topic right now in various cities. 

Independent Post

I am sorry for my delay the past few months, I have been busy processing, grieving,  and getting affairs taken care of after my father's passing back in May, and am slowly but surely cleaning out his house and going through his possessions, as well as my late grandmother's possessions. Dad never got rid of my grandmother's possessions after she passed over 20 years ago for sentimental reasons. As I am going through various areas of the house and seeing what I would want and what I need to give to charity once they start accepting donations again, I find this interesting piece of history. This was a bag for the Independent Postal System in the 1970s. From what I have read, IPSA was competition for the Post Office back in the days, and they actually got sued before they disbanded! This bag was in the Detroit Metro area. Was IPSA active where you were from or currently are?