There is no universal rule book or dealer procedures used for poker - each casino or poker room uses its own unique blend
of poker rules and shuffling and dealing techniques. Many dealers are taught in-house by whatever casino they happen to work at.
There are certain poker standards such as Robert's Rules of Poker, but there is also a chance that the card room has never
heard of Robert's Rules!
Riffle-strip-riffle-cut
The most common method for shuffling cards between poker hands is the riffle-strip-riffle-cut procedure.
The dealer collects the cards from the previous hand
Riffle the deck two or three times (it depends on the casino)