Millions of women follow Kayla Itsines and her Bikini Body Guide 28-minute workouts. With a range of energetic, kinetic, high-intensity interval training sessions this book covers everything. Fans not only follow Kayla on Instagram, they pack stadiums for live workout sessions with her. On top of all of this they’ve made her Sweat with Kayla app hit the top of the Apple App Store’s health and fitness charts. Which is hardly surprising as it is a highly motivating and helpful tool that is proven through many amazing before and after progress shots. So if your in serious need of a helpful and supportive program grab the book, purchase the app and join the online community. You won’t regret it.