This is an audiobook and an ebook on the subject of Kettlebell training and fitness which is called Kettlebell Transformation.
To be frank, right now your fitness routine is probably woefully insufficient. If you followed conventional fitness and training wisdom and combined that with a conventional lifestyle, then you may be doing untold damage to not only your body but also your brain.
That is not to say that you have been misled, simply that we are discovering new information all the time and that this is constantly shifting paradigms with regards to the best forms of training.
This guide will explain everything in detail and introduce the solution: the kettlebell.