So I've been working on modeling a book. I've made the text block and the cover as separate objects to make it a little easier on me. My question is, is it beneficial to leave them separate in any way, or does it really make a difference? My other question is, especially for such a simple model with mostly flat sides, is it preferable to use triangles, or quads? On that note, does mixing them provide any difficulties in texturing or otherwise?