Editor's note: CNN World Sport anchor Mark McKay explains to our international audience why they may find America is preoccupied at the moment with students playing basketball.
Atlanta, Georgia (CNN) -- Are you coming to the United States soon? Welcome to America -- or between now and the second Monday of April, "Welcome to March Madness."
Turn on a TV and it will be hard to avoid it. Eavesdrop on a conversation in a restaurant, bar or office and chances are you'll be hearing phrases like "Sweet Sixteen" and "Final Four."
For nearly three weeks, the field will shrink until two teams are left to play for the right to be crowned national champion, on April 8 here in Atlanta's Georgia Dome.
This is the annual rite of spring that American college basketball fans live for after they've trudged through the cold, dark days of winter. It's when hope springs eternal for 68 teams that compete in something called the NCAA men's tournament.
During this time, keep in mind that productivity in many offices drops precipitously as workers find themselves covertly, and in many cases, quite openly searching to see how their bracket picks are progressing. Managers tend to give their workers passes this time of year as they too have, in all likelihood, caught "Hoops Fever."
Bracket picks? We'll get to that in a minute.
Why all the fuss over a college basketball tournament? Many of my British colleagues through the years have told me that they're not used to having the kind of attention shown on so-called "university" sport as the U.S. places on college basketball. Once they experience March Madness they're hooked. These are amateur athletes who are playing sport at its purest level and not locked into a multimillion-dollar professional contract.
Add to that the possibility that a collection of collegiate "unknowns" in a far-flung part of the U.S. could rise up and pull off a series of shocking upsets in the tournament is part of the beauty of this unscripted springtime story.
It may sound simple enough, but the road to the national championship game can be filled with shocking surprises -- hence the "madness."
Since I grew up loving college basketball, I'm here to help you understand what's going on so that you can bluff your way through a meeting with American clients or hold your own in the hotel bar, at least for a few minutes. Here is my glossary.
Bracketology -- the science of predicting the winners and losers. Before the first games tip off, the teams are paired against each other by a selection committee. Some play close to home at the start, while others may have to trek across the country to chase their dream. Teams are placed in a bracket, like a glorified flow chart, which will follow their progress throughout the tournament. Fans take the fun to a whole new level by filling out their own personal brackets, predicting all the winners through to the final. President Barack Obama does his. Bracket competition breaks out between friends and co-workers, with entire offices often fielding entries. Does money change hands? Yes. By some estimates $2.5 billion every year. Let's call them "friendly wagers."
Cinderella -- the surprise team. You may hear this tournament being referred to as "The Big Dance." Inevitably, there's always a Cinderella, or two, that crashes the ball. These are the overachieving players who pull off a series of upsets that can result in an unexpected champion.
Sweet 16 -- the taste of survival. After the first weekend, 16 teams will have made their way through the first two rounds. Reaching the last 16, as it's referred to for instance in football's Champions League, brings with it a sweet sense of accomplishment for the players and coaches. It's only temporary. Soon they will be back on the hard courts hoping to reach the Elite Eight, then the Final Four.
Final Four -- where the magic really happens. By now even non-college basketball fans get caught up in the frenzy, even if their team isn't playing. Many of the losing fans sell their tickets for the title game and leave town, dreaming of what might have been.
I hope this helps. And if you come across strange mascots, painted faces and people wearing cutout basketballs as head gear, it's just par-for-the course during one crazy but special time of the year.