I checked this book out from the library and had it sitting on my drawing table for awhile before I tried any of the projects (mostly because the first one is titled "Scoopy Ball Game" and looks kinda stupid). I've really gotten into it, though. I've made several of the projects and liked the results. Some are quick and easy; some require several pieces of paper and time. I think that beginners without any paper folding experience could comprehend some of the projects, but having already worked through another beginner book that explained basic folds would improve success with this book (I started with Tomoko Fuse's Origami Boxes book in the 4th grade--not exactly a beginner book, but the author explains well how to read paper-folding diagrams). The "Suggested Uses for Trash Origami" section in the back of Trash Origami helps you re-imagine your craft projects as cheap, not-embarrassing gifts, and I'm very glad that it is included (how many times have I looked at project in a book and asked myself "what would I do with that?").
At this point, I've turned notepad paper into sailboat letters, made photo cubes out of vacation pictures, started a checkers game, made the soup can label hearts, and cut a bunch of Starbucks pastry bags into square origami paper (access to a paper cutter makes this faster but a ruler and x-acto knife will do). I impressed my co-workers by turning the suggested book project into a Victorian-type photo album with page border art found at fromoldbooks.org. I am very pleased with myself and this Trash Origami book.