The "Silpa Prakasa" of Odisha, authored by Ramachandra Bhattaraka Kaulachara sometime in ninth or tenth century CE, is another Vāstu Śastra. Silpa Prakasa describes the geometric principles in every aspect of the temple and symbolism such as 16 emotions of human beings carved as 16 types of female figures. These styles were perfected in Hindu temples prevalent in eastern states of India. Other ancient texts found expand these architectural principles, suggesting that different parts of India developed, invented and added their own interpretations. For example, in "Saurastra" tradition of temple building found in western states of India, the feminine form, expressions and emotions are depicted in 32 types of "Nataka-stri" compared to 16 types described in "Silpa Prakasa". Silpa Prakasa provides brief introduction to 12 types of Hindu temples. Other texts, such as "Pancaratra Prasada Prasadhana" compiled by Daniel Smith and Silpa Ratnakara compiled by Narmada Sankara provide a more extensive list of Hindu temple types.