A guest sign in book isn’t necessary, but the idea behind it is! The most important people in your life have traveled from far and near to celebrate one of your most important milestones. Each brings with them a memory, a thought, a wish, or a prayer that they should be able to share with you. Writing it in a "guest book" is an easy way for them to capture their thoughts. In years to come, you will look back at your wedding day and read the heartfelt notes of those who were there.
To see Colin's suggestions for alternative guest books, keep reading.