This research explores about Indie book corner promotion in marketing book by using social media. The researcher chose IBC as the object because it is the one of indie books publication that is successful enough in the marketing through social media, it can be found from the income in a mounth that always increase, then the quality of the publicated and saled books has become the nomination of books competition. The purpose of this research is to find and explore how the strategy of promoting that used by IBC in marketing the book through social media, so it is still run and known as the successful indie publication. The type of this research is the study of qualitative description. The technique of analysis data used Miles and Huberman model, there are collecting data, reducing data, presenting data, and concluding. The data came from interviewing deeply (deep interview), observing the participants, and documentation. The result of this research displayed how strategy of indie book corner promotion in its social media account is success to bring it as the successful indie publication in the condition of unstable publication. The promotion strategy is applied such as creating gimmick-gimmick, using pattern posting, using viral media. From the three strategies are used effectively. This research also explained about how to arrange SWOT IBC analysis, then what ways IBC to decide and apply the modest strategy.