The Bibliometric Indicators for Publishers website displays tables with the performance of publishers indexed in Thomson Reuters’ Book Citation Index for the 2009-2013 time period. Six indicators are shown for each publisher in four fields (Engineering & Technology, Humanities & Arts, Science and Social Sciences) and 38 scientific disciplines. In this page we provide basic information to aid the reader to understand the information displayed.
The Thomson Reuters’ Book Citation Index (BKCI) was launched in 2011. It provides large sets of citation and publication data on monographs and book chapters and it is included in the Web of Science Core Collection within the Web of Knowledge platform. It covers scientific literature since 1999 and, as it occurs with the Science Citation Index, Social Science Citation Index and Arts & Humanities Citation Index, it follows a rigorous selection process using the following principle criteria (Testa, 2010): 1) currency of publications, 2)complete bibliographic information for all cited references, and 3) the implementation of a peer review process. As a recent product, the BKCI has important limitations that must be considered when analyzing the results shown. Here we summarize the main ones (Torres-Salinas et al., 2014):
For each publisher we display six indicators showing three different aspects of each publisher’s performance:
The output displayed belongs to the 2009-2013 time period. A publication window of five years was chosen in order to provide stable results. However, some publishers have very few records for certain fields and disciplines. Some of the indicators shown have strong limitations when working with small sets of data, such as the FNCS or the AI. In order to avoid this limitations, a minimum output threshold was determined in order to include a publisher in a given field or discipline. Only publishers which meet the following criteria are included: 1) a minimum of five books or 2) a minimum of 50 book chapters.