The Heart Sutra is a condensation of the vast Pajnaparamita sutras on emptiness. This 5 minute sutra is recited in many Buddhist centers across the world.

While being short, it is extremely profound and here Bokar Rinpoche explains its meaning and how it relates to understanding emptiness. In the Mahayana it is said that if one does not understand that a person and of outer phenomena are insubstantial (that is "empty") one can not completely grasp and reach enlightenment.

This book is about 100 pages which covers not only the sutra, but what is behind it and is easy reading.