This book is exactly what I needed as a beginner to Doterra oils. I want to start using oils more in my daily routine with cleaning, skin care, roller blends etc and this book has so much helpful information! I love that there is a breakdown of each oil and blend along with the science behind each oil. The book is a great value and arrived in great condition. I will say that shipping seems to always be extended after ordering which is a little bit disappointing. However, I love the product and will definitely be ordering more.