Valliyappan's first book, Thittamiduvom Vetriperuvom, which dealt with Self-development, was published in the year 2002. His first book did well in the market and he continued authoring books such as Thottathellam Ponnaagum, Kaalam Ungal Kaladiyil etc. which introduced many specialized subjects in management for the Tamil readers. Valliyappan's Alla Alla Panam, published in August 2004 by Kizhakku Publishers (New Horizon Media), created a new record of sorts in the Tamil publishing world. The book sold ten thousand copies in the first few months of its launch, which is unheard of for an investment book in Tamil. In 2010, the book's sale crossed the one lakh mark.
