Short answer: No, Jainism does not have one single “Bible-like” book.

• What Jainism has instead

- A large collection of sacred scriptures called Āgamas (teachings of the Tirthankaras) and many authoritative commentaries by ācāryas. - The core prayer for all Jains is the Navkār (Namokār) Mantra, but it is not a book.

• Two main traditions preserve the scriptures differently

- Śvetāmbara: Preserve a canon traditionally counted as 45 Āgamas (11 Aṅgas, 12 Upāṅgas, 10 Paiṇṇayas/Prakīrṇakas, 6 Chedasūtras, 4 Mūlasūtras, 2 Cūlikāsūtras). - Digambara: Hold that the original Āgamas were lost; they rely on early foundational texts like Ṣaṭkhaṇḍāgama and Kaṣāyapāhuḍa, and on works of great ācāryas (e.g., Kundakunda’s Samayasāra, Niyamasāra, Pravacanasāra; Nemichandra’s Gommaṭasāra; Ratnakaraṇḍa-śrāvakācāra, etc.).

• A common scripture respected by both traditions

- Tattvārtha Sūtra (Tattvārthādhigama Sūtra) by Ācārya Umāsvāti/Umāsvāmi is the closest single, universally accepted philosophical summary of Jain doctrine across both Śvetāmbara and Digambara.

In essence: Jain dharma rests on a broad, well-preserved scriptural tradition rather than a single book.