This is a beautiful little book. However, the reader should be aware of the subtitle, "A Mystical Journey." Hoffman only explains the letters in light of the Zohar, the Kaballah and Chassidut. Sometimes the plain meaning of the letters are alluded to, sometimes not. For example, the meaning of Kaf, hand/palm, is not mentioned. Sometimes the egregious of all is that the letter Yud is not mentioned as the start of the Tetragrammaton, the most common name for God through Torah.
The book is beautifully illustrated by Karen Silver.