Q&A for How to Staple a Booklet

If you want to know if an edge is 90 degrees, use the corner of a sheet of paper to check. You could also use a woodworker's triangle.

The normal sized staples should be fine when you are stapling a booklet. Avoid the thin staples when it is at all possible.

You might try a laminated page of legal sized paper. Or you may want to "decoupage" a piece of legal sized paper onto a thin piece of wood or some other kind of material. You of course will provide the cover design first.

If by "common sizes" you mean 8.5 X 11 inches, simply divide 11 by 2 or 3 and space the staples at equal distances to one another. The same should hold for varying lengths of pages, depending on the size of your booklet.