The product is a trade paperback book titled "The Seven Principles for Making Marriage Work: A Practical Guide from the Country's Foremost Relationship Expert" by authors Nan Silver and John Gottman. Published by Potter/Ten SPEED/Harmony/Rodale in 2015, the book is 320 pages long and falls under the genre of Family & Relationships. It offers insights on love, romance, marriage, long-term relationships, conflict resolution, and practical advice for strengthening marriages based on research and expertise in the field.
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