In 2005, Indrawan Nugroho with his fellow-Kubik founder wrote a book that immediately became a best-seller. The title of the book is Kubik Leadership. The book was published by Gramedia and has been reprinted several times and had 3 cover changes. The contents of the book become the foundations of Kubik Training Modules. Following the success of the first book, in 2010 the second book get published under the same publisher. The title is DNA SuksesMulia. The book has also made the best-seller list until this day.