SPI aims at offering information and indicators on the editorial sector of scholarly books in order to better understand it and assist, as far as possible, in making evaluation processes more objective. While qualitative evaluation, through the reading of each book, is a method much demanded by the scholarly community, the fact is that evaluations are carried out at present based on the use of indirect quality indicators. This is due both to the frequency that evaluations are made and the amount of resources which are needed to carry out a qualitative evaluation.

The indicators and information that SPI brings together should not be used automatically or mechanically in evaluation processes. As a whole (prestige, specizalization and peer review systems), they can give a general idea of the quality and/or professionalization of a scholarly publisher. The evaluation of a book is a much more complex task, but the information offered by SPI may illustrate and assist in the evaluation processes of scholarly production.

"No map can substitute the region which has been mapped, but at the same time […] a well plotted chart simplifies the itinerary"

Tomás Granados Salinas. Director of the collection Libros about books belonging to the Fondo de Cultura Económica, in a note from the Manual de edición literaria y no literaria