In order to learn more about any topic - historical, social, literary, etc. - important to the book, you might want to locate and read academic journal articles. These are in-depth research studies published by experts in the field. Many journal articles are peer-reviewed. This means that they are evaluated (reviewed) by other experts (peers) for the quality of their research and contribution to the field of study before they can be published. Peer-review aims to ensure a higher quality of information in academic publications.
The databases listed in the box below are good sources of academic journal articles in a variety of subject areas relevant to the book.