I've just published a second round of origami designs/tutorials called Paleo Origami: Dinosaurs, Pterosaurs, and More. As the title suggests, this collection is centered around dinosaurs and other prehistoric animals. The book is available both as a paperback and eBook on Amazon: https://www.amazon.com/dp/B08XH2JRHW In this set of designs, I focused both on including more paleontologically up-to-date representations of some creatures and on featuring some more unusual animals that often don't make their way into the paper folding world. Paleo Origami utilizes color more strongly than my last book, both in the diagrams themselves and in the display models. The kindle version of the book is also in color for devices that support it, but still compatible with black-and-white devices. A couple of design highlights: Velociraptor (with suggested wing/tail feathers) and a Trilobite.