1) Attached using a Swingline 2) Fastened 3) Fastened mechanically 4) Fastened together 5) Having a corner piece 6) Pinned 7) Used a Swingline Found on https://www.crosswordclues.com/clue/stapled
A binding method that uses metal staples to secure the pages, typically for binding magazines and pamphlets. Also known as saddle stitching. Found on http://www.alibris.com/glossary/glossary-books