This is an ultimate A-Z because it includes titles, authors, character names, items on the cover, and a scavenger-type prompt for each letter of the alphabet. Depending on how you want to challenge yourself; you can choose to use a different book for every prompt or repeat books for the 5 categories (Title, Author, Character, Item, Scavenger) meaning you could use the same book 5 times if it fits a prompt.  For some of the difficult letters, I have given an easier way to finish those prompts but if you want to really challenge yourself and not use those, feel free to do so.  This will be open for two years since everyone reads at their own pace and there are a total of 130 prompts.