Received several stamp collection books. Would anyone be able to

Movable stationery v. 18 :no. 4 (2010: Nov.)

Do libraries put stamps on their books? If so, why? - Quora

How to Collect Stamps (with Pictures) - wikiHow

The World of Stamps & Stamp Collecting - Chapter Four

San Francisco Examiners Stampeders Stamp Club Swap Book, 1940's

I was recently given some vintage playing cards, could someone help me ID them and if they're worth anything? : r/playingcards

I bought a large box of coins from my LCS and these were in it. Can someone tell me more? : r/AncientCoins

Solved Solve the following systems of equations

Where do I start to find out if my notes are worth anything : r/Banknotes