Listen to the Summary of Monks of New Skete's The Art of Raising a Puppy (Revised Edition) in 20 minutes. Please note: This is a summary & not the original book. The first sixteen weeks of a dog's life are important in determining his behavior as an adult. If you want to raise a puppy who will be a trusted companion and friend for the next ten to fifteen years, the best foundation you can lay for him is to understand how he grows during this time of early change and development..