The book I’m trying to remember is similar to #96 — typical information for teenagers on grooming, clothes, nutrition, manners, things like that. The ultimate goal of this one was for the reader to host a successful party and it had a countdown. Something like one month out, make a guest list, three weeks out, send invitations, two weeks out, make a menu and shopping list, one week out, pick out and iron your outfit, etc. It may have been affiliated with a magazine. Seventeen had several books of that genre but none of them that I’ve looked at online seem to be this one, so maybe Co-ed or American Girl, or maybe I’m mistaken about the magazine connection. I got it from the library around 1973 or 74; it may have been from then or from the 60s as it didn’t seem as old-fashioned as the 50s books of this type.