Improving Your Judgment - Opening The Bidding by Audrey Grant
Intermediate players
Advancing players
We all know when to open the bidding, but experts use situational awareness and judgment to open a hand (or not open a hand) that might vary from the rules you were taught as a new player.
Learn how your seat in the auction affects your opening bid, more about preemptive opening bids, and when and how to open very strong hands.
There's a surprising amount of subtlety that becomes apparent when you really study opening the bidding.
Opening at the One Level - In First and Second Position
Opening at the One Level - In Third and Fourth Position