Brahmachari Shri Sumat Prakash ji (often written “Br. Sumat Prakash ji”) is a respected Jain scholar and pravachan-karta, especially known for:

• Explaining Jain Siddhant (basic as well as deep philosophy) in very simple Hindi
• Audio pravachans on texts like Jain Siddhant Praveshika and other introductory / madhyamik-level Jain scriptures
• Practical talks on right faith, non‑violence, samayik, pratikraman, etc.

About “books”:

• Br. Sumat Prakash ji is mainly known for his audio pravachans and discourses, which are widely circulated.
• Some of his talks have been transcribed into booklets by local Jain sanghs / institutions, but there is no single, universally accepted “official list” of his books available online.
• If you want actual physical or PDF books, the best places are:

- Local Jain libraries or Pathshalas in your city - Book counters at bigger Jain temples / upashrayas - Audio/Book stalls during Paryushan or special pravachan series (they often have his cassettes/CDs/MP3s and any booklets based on his lectures)

If you tell me what type of book you want (e.g. “basic Jain Siddhant,” “stories for children,” “Samaysar explanation,” etc.), I can suggest which kind of works of his (or similar Jain authors) to look for in libraries.