These Help pages can be downloaded here with the Winning Bridge Shareware game for Microsoft Windows 98, ME, 2000 and XP.
If you would rather read a book, take a look at the Acol Bidding page for some suggestions.
Acol Opening - Strong Balanced Hand
20 - 22 points
With no 5 card suit bid 2 No Trump.
More than 22
Bid 2C (or 2D Benjamin).