Search engine or search engine is a device that can facilitate the user to obtain information by displaying the search results according to the information that is sought by the user. Information Retrieval (IR) or an info-back system is one way to easily rediscover the information on documents contained in a system. To be able to display the information or title of the book related or relevant to the title of the book to be searched, will be created a search system of books that use an information retrieval system or the information Retrieval (IR). If the user forgets the details of the title of the book to be searched, it is very difficult to search the book title because the system is unable to display the corresponding title of the book or is relevant to the book title entered on the search form.
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A book search system that uses the search process by matching keywords and data to the database, will only display the title of the book exactly as the keyword entered on the search form. Therefore the library requires a system to simplify the process of searching the book.
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The lack of information available about books or documents in the library will prevent visitors from finding the information they need. In addition, visitors should also first find the fields or topics of the searched book by visiting the Bookcloset section that corresponds to the field or topic. The book search process in a library that requires visitors to visit each of the booksets will take a long time. Libraries are required to be able to improve their services especially in book Search or documents. This library provides various facilities and services that can be used by the community of Sulut such as searching, reading and borrowing books. Dinas Perpustakaan dan Kearsipan Daerah Provinsi Sulawesi Utara is a library owned by the provincial government of Sulawesi Utara (Sulut), which provides various sources of information needed by the community such as books or reference documents.