To use all of the following materials, you will need the book, Deepening Love--For Marital Happiness. This book is may be purchased through Northwestern Publishing House Catalog Stock#OL 12-1755. Select the search button on the Northwestern Publishing House Catalog main page. Type Deepening Love in the search window. Then select the search button, which will bring up the Deepening Love--For Marital Happiness catalog item. Add Deepening Love--For Marital Happiness to your shopping cart and follow the directions to order it.