I would like to know if there are any comprehensive books available that provide detailed and authentic information on the various tilakas associated with different sampradāyas, such as the Vaiṣṇava traditions (Rāmānuja, Rāmānanda, Nimbārka, Vallabha, Dvaita, Gauḍīya), as well as Śaiva, Gāṇapatya, and Smārta traditions. Kindly let me know if such resources exist.
Regards.