HX18 Book Stacker is used for neat stacking and product counting of bound book products, such as perfect binding books or sewn book blocks, and can be interleaving pile stacked in batches according to requirements, suitable for connecting with the medium speed perfect binding line, or three knife trimmer, as stacking and storage of books, and can be connected to the packaging and palletizing, packing and other processes of the machine. Touch screen control, for interleaving pile stacking books of different sizes, automatic changeover in one minute without any tools. Patented to design upper, middle, and lower three-story book storage structures.