Acharya Kundakund is one of the most revered Digambara Jain acharyas, believed to have lived around the 1st–2nd century CE. He is renowned for his profound philosophical works, which are considered foundational texts in Jain philosophy, especially within the Digambara tradition.

Some of the most important books and treatises authored by Acharya Kundakund include:

1. Samayasara (समयसार)

One of his most celebrated works, it deals with the nature of the soul and reality (jiva and ajiva), emphasizing the distinction between the true self and material associations.

1. Niyamasara (नियमसार)

This text discusses the essentials of Jain conduct, focusing on ethical discipline and right conduct (niyama).

1. Panchastikayasara (पंचास्तिकायसार)

It explains the five major categories of existence (astikayas): Jiva (soul), Pudgala (matter), Dharma (principle of motion), Adharma (principle of rest), and Akasha (space).

1. Pravachanasara (प्रवचनसार)

A treatise on the nature of reality and the path to liberation, presenting the essence of Jain doctrine.

1. Ashta Pahuda (अष्टपहुड)

A collection of eight treatises (pahudas) covering different aspects of Jain philosophy and practice.

1. Rayansara (रयणसार)

A concise work on the essentials of the Jain path.

These texts are written in Prakrit, specifically Jain Shauraseni or Ardhamagadhi, and have been extensively commented upon by later Jain scholars. Acharya Kundakund's works emphasize the distinction between the empirical and the pure viewpoint (nischaya naya and vyavahara naya), and are central to understanding Jain metaphysics and soteriology.

If you wish to study these books, English and Hindi translations and commentaries are widely available from Jain publishers and online resources.