【The Definitive SPI3 Preparation Book】 This is the 2023 edition SPI3 preparation book, specializing in test center preparation for job hunting. I purchased both books used. They are being sold as a set of two. I did not write in them, and they do not appear to have any writing inside, but I have not checked every page, so please forgive any oversights. Please only purchase if you understand that these are used items and agree to no claims and no returns.