Answer: Side Stitching!
In Side Stitching (aka Stab or Wire Stitching), single sheets of paper are stacked and then stapled as one unit down the side – from the front to the back.
While it might not be the most luxurious look, it does afford you the opportunity to use single leaves as well as folded signatures in your project (as opposed to Saddle Stitching, which requires a minimum of a 4-page signature or a large binding lip).
Since Side Stitching is readily available and inexpensive, it’s a budget-friendly binding method. It also allows you more room for creativity than you might think, such as the copper staples used in the Bardessono’s guest directory above.