Shahed Sadiq book by Mirza Mohammad Sadiq Esfahani is one of the valuable prose works of the eleventh century AH and one of the successful examples of multi-knowledge books (encyclopedias) compiled in the Indian subcontinent. the plurality of its manuscripts in libraries shows its scientific value and popularity.Yet, it has not been revisioned or introduced for unknown reasons. Considering the importance of this book in terms of inclusion of various and diverse topics, like anthropology, social history, geograhyl, popular culture, religion, proverbs, etc. It can be considered as one of the reliable sources in understanding the social, historical, scientific and literary conditions of the author's era. The book contains deep information of various topics, which is now presented in public encyclopedias. This article, tries to investigate the writing style of the work and explain its valuable place to some extent.
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