Here’s a great Wizard of Oz reference: Index to the Baum Bugle by Frederick Otto, published by the Int’l Wizard of Oz Club. The Baum Bugle is a Wizard of Oz Fanzine/journal with many useful articles. I have two different editions of this softcover index–one published in 1986, and one in 1990. Shown is 1986. Price is for your choice of years–specify which in the Order Notes box at bottom of Checkout. Very detailed and in very good condition with light age toning and wear. Hard to find.