I stitched every book the same direction for 3 years until a customer flipped one open and asked why the pages fought her | Bookbinders - Babble Community
Yeah and once you fix the direction, the spine text matters too. Nothing worse than a row of books where half the titles run top to bottom and the rest run bottom to top, so your eye has to keep jumping around. Book people call it the "spine lean" and it drives collectors up a wall. If you ever sell to a shop, get in the habit now and stitch them all the same way.