The book is well written by Greg and Steven Northover. The story is about Greg who is dealing with weakening his levels of essential tremors for more than fifteen years. What are the Essential Tremors? Essential tremor (ET) is a general movement disorder that many people suffer. ET is a progressive and neurological disease. Tremors mostly happen in patients’ hands or arms. It is an involuntary movement such as shaking or trembling of the affected body part.