The Biology CRAI Library provides comprehensive materials for teaching and research activities at the Faculty for the courses: Biology, Environmental Sciences, Biotechnology, Biomedical Sciences and Biochemistry. It was created in 1982 with the stock of the former Seminary of Biology.

The Bellvitge Campus CRAI Library provides comprehensive materials for teaching and research activities at the Campus's schools and faculties for the following courses: Nursing, Medicine, Dentistry, Podiatry and Biomedical Sciences, and specialization in Mental Health Nursing.

The Clínic Campus CRAI Library offers bibliographic collections, resources, tools and support services for the teaching and research programmes of the courses taught at the Faculty: Medicine, Biomedical Sciences, Biomedical Engineering and Nursing.

The Mundet Campus CRAI Library provides comprehensive materials for teaching and research activities for courses on the Campus -Teacher Training in Early Childhood Education, Teacher Training in Primary Education, Education, Social Education, Social Work and Psychology- and for masters of Education and Psychology.

The Earth Sciences CRAI Library provides comprehensive materials for teaching and research activities at the Faculty for the courses: Geology and Sea Sciences

Ownership of the library is shared with GEO3BCN Geociències Barcelona - CSIC.

It has a map library that contains 10,000 maps and 14,000 aerial photographs of Catalonia and Aragon.

The Law CRAI Library provides comprehensive materials for teaching and research activities at the Faculty for the courses: Law, Political and Administration Sciences, Public Management and Administration, Industrial Relations, Criminology and Criminal Policy, Private Investigation and the UB-specific undergraduate degree in Public and Private Security.

The Economics and Business CRAI Library provides comprehensive materials for teaching and research activities at the Faculty for the courses: Economics, Statistics, Sociology, Business Management and Administration, Marketing and Market Research, Creation and Management of New Technology-Based Firms, Sport Business Management, Cultural Management, Public Management, Economic History, Internationalization, Business Research, and Financial and Actuarial Sciences.

It is located on two sites:

The Pharmacy and Food Science CRAI Library provides comprehensive materials for teaching and research activities at the Faculty for the courses: Pharmacy, Human Nutrition and Dietetics, and Food Science and Technology and Degree in Culinary and Gastronomic Sciences.

Its collections include the Grewe Collection on food and gastronomy.

It has two different locations:

The Philosophy, Geography and History CRAI Library provides comprehensive materials for teaching and research activities at the two faculties for the courses: Anthropology, Archaeology, Philosophy, Geography, History and Art History.

It also has a large map library, containing maps from all geography-related disciplines.

The Physics and Chemistry CRAI Library provides comprehensive materials for teaching and research activities at the two faculties for the courses: Physics, Chemistry, Materials Engineering, Electronic Engineering and Chemical Engineering.