I just bought my first MacBook Pro 13" with High Sierra installed on it. This book is fantastic as I am a visual learner. The book shows you step by step, in pictures, how to do what you want to do. You see the exact same thing on your MacBook that the book is showing you. Step 1, Step 2, Step 3. If there are any options or sub steps A, B, C. You can't go wrong. It's practically idiot proof. Full disclosure: I am a non tech savvy senior citizen. This is perfect for me. Know your needs and make an informed choice. I'm glad I did and bought the paper back version of this book.