What About The Rapture And The Second Coming

The word 'Rapture' has become a common catch word in evangelical circles since Hal Lindsy popularized it years ago. Is the idea of a 'rapture' the way it is commonly used biblical? What is the precise nature of Christ's Second Coming? What really happens when He comes again? Is this event secret? Does it only include believers? Who is raised from the dead at that event? And what are we to learn from knowing Jesus is coming again?