If you're sure you want books then for mucking, go with Hand Mucking by George Joseph. However, Tony Giorgio's Ultimate Work DVDs are brilliant and have some moves that I think you'd be hard pressed to find anywhere else. Whereas Joseph's book is more aimed at the magician, Giorgio's material is, so I've heard, the "real work". And, just to correct an earlier poster, there is no mucking taught in Erdnase, but don't let that put you off it if you don't study that already.
Riffle stacking stuff is harder to find. Really, the best stuff is in Karl Fulves riffle shuffle manuscripts (Riffle Shuffle Technique, Riffle Shuffle Methods etc.), but they are very difficult to find. While you're waiting for some of that stuff to appear on eBay, check out By Forces Unseen.
As for tabled multiple shifts and deck switches, as far as I know they're spread out across a load of different texts, so I'd find it difficult to recommend one authoritative book for either technique. However, if you're interested in this kind of thing, have a look at the chapter on riffle shuffle technique in More Inner Secrets of Card Magic.