Nicky and Sila Nicky and Sila Lee are the Founders of Relationship Central and over the last twenty-five years have developed and produced resources to help support family life through the local church. They regularly speak to thousands of guests at training events and conferences worldwide.

They are co-authors of The Marriage Book, which is based on The Marriage Preparation Course and The Marriage Course, and The Parenting Book, which is based on The Parenting Children Course and The Parenting Teenagers Course.

In New Zealand, Alpha New Zealand distribute, train and resource churches and individuals to use these courses to benefit their communities.