The Perfect Way to Spend the Next Hundred Days. The 100-Day Devotional for Guys offers relatable, real-life wisdom and inspiration for everyday living. Guys, ages 13 and up, will encounter page after page of biblical truths they can apply to every area of their lives. With topics like Popularity, Doubt, the Media, Stress, Self-Image, Priorities, Contentment, and more, teenage boys will be encouraged to grow in their faith and spend regular time in the heavenly Father's presence. Each devotional reading is complemented by a brief scripture selection and short prayer-starter. The 100-Day Devotional for Guys is the perfect place for teen boys to spend their next hundred days!.