This study is concerned with Giordano Bruno's ars memoriae and the relation between his works on mnemonics and philosophy in the first phase of his reflection (1582–1585). The hermeneutic hypothesis that will be explored is that it is Giordano Bruno's De umbris idearum that first reveals his new elaboration of the notion of order, which will then be further unfolded in the philosophical works published in London, especially in the notions of nature, language, and praxis developed therein. The research statement is explored into more detail on a methodological level, through a discussion of Hans Blumenberg's interpretation of Giordano Bruno, and on an analytical level, through a metaphorological interpretation of the inward writing and the shadow metaphors in the De umbris idearum.

In Magic and Memory in Giordano Bruno Manuel Mertens unravels the enigmatic knot between the mnemonic treatises and the magical writings of the sixteenth-century Italian philosopher Giordano Bruno. Since long the magical orientation of the Brunian art of memory has been a preoccupation for Bruno scholars (like Paolo Rossi, Frances Yates and Rita Sturlese). This serious study of the philosophical underpinnings of both Bruno’s mnemonic treatises and his writings on magic shows that Bruno believed his mnemonic method could prevent demons from corrupting the cognitive process. Mertens’s focus on Bruno’s idea of deification through memory and the philosopher’s view on fiery heroic spirits points to a surprisingly literal reading of the heretic’s last words.

When Pieter Verburg (1905-1989) published Taal en Functionaliteit in 1952, the work was received with admiration by linguistic scholars, though the number of those who could read the Dutch text for themselves remained limited. The title alludes to the theories of linguistic function set out in 1936 by Karl Bühler, but Verburg regards the three functions of discourse — focussing respectively on the speaker, the person addressed and the matter discussed — as no more than sub-functions of the human function of speech. His central concern is to explore the relationships between thought and language, and language and reality; and the work sets out to provide a historical analysis of views on these relationships in the period 1100 to 1800. The great strength of the work lies in the way in which the views of language are related to contemporaneous moves in philosophy and science, contrasting essentially the mediaeval acceptance of authority, the beginnings of induction in the Renaissance, the dependence of early rationalism on calculation based on axiomatic truths, and the further development of independent observation. All these trends are reflected in the way men thought about language, as well as in the way they used it. Much has been written on the history of linguistics since this book was written, but it still offers a unique view of the development of thinking about language.

With the prevalence of smartphones, massive data storage, and search engines, we might think of today as the height of the information age. In reality, every era has faced its own challenges of storing, organizing, and accessing information. While they lacked digital devices, our ancestors, when faced with information overload, utilized some of the same techniques that underlie our modern interfaces: they visualized and spatialized data, tying it to the emotional and sensory spaces of memory, thereby turning their minds into a visual interface for accessing information. In Excavating the Memory Palace, Seth David Long mines the history of Europe’s arts of memory to find the origins of today’s data visualizations, unearthing how ancient constructions of cognitive pathways paved the way for modern technological interfaces. Looking to techniques like the memory palace, he finds the ways that information has been tied to sensory and visual experience, turning raw data into lucid knowledge. From the icons of smart phone screens to massive network graphs, Long shows us the ancestry of the cyberscape and unveils the history of memory as a creative act.

Manuel Mertens guides the reader through Bruno's mnemonic palaces, and shows how these fascinating intellectual constructions of the famous heretic philosopher can be called magical.

Cur Deus Verba unfolds a systematic theology of Scripture from a single key question: What did God seek to accomplish by making the Bible? The answer requires seeing why the Holy Trinity made anything at all, why the Word became flesh, and finally why the Church needs an inspired text. As Christ is more fully "man" than any mere man, so his Church is more fully "society" than any merely human society. And as every society has its literary tradition, so the Church needed a canon of literature that would be more fully "book" than any merely human book. But to grasp what God intended to accomplish, we have to see how he intended to do it. To the extent possible, God wanted human beings to cause not just the text but revelation itself, and paradoxically this exaltation of human agency gave rise to the need for Scripture’s spiritual sense. The spiritual sense of Scripture leads in turn to a meaning of the term "literal" that is unique to the realm of theology, and the connection between the two means that we cannot follow the literal sense without grasping the spiritual as well. Once God has made what he intended in the way he intended, one question remains: How does this inspired text continue to exist? As with any text, the answer is that Scripture exists in physical books, but really and principally in the hearts of the readers. And Scripture's own place in the salvation history it records means that one human heart is preeminent: the text of Sacred Scripture exists exemplarily in the Heart of Jesus Christ.

One of the lengthier grimoires of the medieval period, the Ars Notoria, commonly referred to as the Notary Art of Solomon, promises the reader a series of orations, prayers, and invocations, which may be used to secure the favor of the christian god, enhancing the memory, eloquence, and general academic capability of the one performing such rituals. Originally its own text, based on even older sources not yet fully documented, this text is commonly wrapped up into the Lesser Keys of Solomon along with such works as the Ars Goetia- some editions of the latter omit this work. Prayers contained herein invoke not just the god of christianity, but Jesus Christ and various angelic powers as well.