No Rapture, Pre-Tribulation, Mid-Tribulation, Post-Tribulation

I have been asked about rapture. Some people are very strong in their views about rapture. I decided to write this book to discuss questions like: 1. How can rapture occur since the word does not appear in my Bible? 2. Do you have to believe in a particular rapture to be saved? 3. What does the Bible tell me about different types of raptures? 4. Does the Bible support a No Rapture? 5. Do the scriptures support a pre-tribulation rapture? 6. Does the Bible support a mid-tribulation rapture? 7. Does the Bible support a post-tribulation rapture?