A new book about Apple written by a former Wall Street Journal reporter has caused a bit of a stir, so much so that even CEO Tim Cook has something to say about it, and that's that the book is a load of "nonsense."

Yukari Iwatani Kane's Haunted Empire: Apple After Steve Jobs is based on 200 interviews with current and former executives, business partners, Apple watchers and more. It suggests that Apple is struggling without Jobs, and also compares Cook with the late Apple co-founder in great depth.

But Tim Cook certainly doesn't like it. "This nonsense belongs with some of the other books I've read about Apple," he told CNBC. "It fails to capture Apple, Steve, or anyone else in the company. Apple has over 85,000 employees that come to work each day to do their best work, to create the world's best products, to put their mark in the universe and leave it better than they found it."

"This has been the heart of Apple from day one and will remain at the heart for decades to come," he continued. "I am very confident about our future. We've always had many doubters in our history. They only make us stronger."

In response to Cook's less than positive thoughts about the book, Kane told Re/code: "For Tim Cook to have such strong feelings about the book, it must have touched a nerve. Even I was surprised by my conclusions, so I understand the sentiment. I'm happy to speak with him or anyone at Apple in public or in private. My hope in writing this book was to be thought-provoking and to start a conversation which I'm glad it has."