Books are one of the most widely used objects in daily life. With the development of the times, there are other alternatives that can be used to read books without having to buy books in stores. One alternative is the website www.goodreads.com where the website provides a variety of books. On the website, we can also give ratings and review s of books that we have read. These review s and ratings can provide a reference for readers. For this reason, an analysis of book rating is required based on data obtained from the www.kaggle.com website. By processing the data obtained will find the best book viewed from several aspects. The purpose of this research is to determine the rating of a book as a reference for readers in choosing the appropriate book. In this study using a classification algorithm naïve bayes data mining. This research was assisted by rapidminer and Python tools as tools to manage data. The results obtained are the results of determining the book rating using the naïve bayes method having an accuracy of 66.98%, precision 74.47% and recall 62.47% and the results of this analysis are obtained from the dataset available on the website www.kaggle.com showing that the majority book rating predictions tend to be low.

Syarif Hidayatullah State Islamic University of Jakartais an educational institution that is tasked with providing quality knowledge and education to students in educating the nation's children. In the current era of globalization, there is knowledge that must be managed for agencies. To achieve this, it is necessary to use existing information technology, namely the online-based Knowledge Management System application. In the world of education, a helpdesk application that helps in improving existing performance and competence. The helpdesk application is widely used by companies and agencies, this application helps facilitate the work of the university technician section. In addition, this helpdesk application makes it easy for students to report damaged campus facilities, so that the technician will make repairs quickly. By looking at this situation, we need a web-based helpdesk application that can coordinate information between technicians and students using the PHP programming languages and My SQL as database design.