I do so enjoy these. I loved Encyclopedia Brown, and this is by the same person.
I figured out many of these (yay!). Some of the ones I didn't get I just missed. (boo!). However, there were a few that even after reading the explanation I thought it was more than a bit flimsy and borderline. One is very dated, and anything that relys on fashion--well, I've seen at least one celebrity break that rule. Well, correction, the one dealing with fashion in terms of employment made perfect sense.
I think I managed not to give anything away. :) These are fun, and short. It's amazing that a clue can be hidden in 2 pages. But they are, and most of them are prefectly logical.