As far as spirituality, these—

Tops:

General Buddhism: In the Buddha’s Words

Zen: Zen is Eternal Life

Shobogenzo - Rev. Hubert Nearman translation

The Denkoroku - Rev. Hubert Nearman translation

Spiritual Biographies: Mae Chee Kaew

The Wild White Goose

Buddhist Scriptures: The Shurungama Sutra - Buddhist Text Translation Society version

Heart Sutra (essense of the heart sutra- Dalai Lama’s teachings on the H.S.)

Way of the Bodhisattva - by Shantideva

Lotus Sutra- Burton Watson translation

The top books on spirituality are OSHO books , no one comes even close to the master . The top mystic of the 20th century whose light is spreading in the 21st century