The Art of the Unknown: A Visual Treasury of the Esoteric, Uncanny and Unexplained

Discover how artists across the centuries have explored the unexplainable, documented the impossible, and illuminated the dark unknown. 
 
What lurks at the edges of human perception? Across time and cultures, artists have found themselves drawn to document encounters with forces and phenomena that defy comprehension, from ghostly manifestations and cosmic energies to twilight realms and parallel dimensions. 
 
While science seeks answers, artists illuminate the unknown through intuition, imagination, and vision, creating visual records of the esoteric, the uncanny, and the unexplainable. 
 
The Art of the Unknown brings together nearly 200 artworks that delve into the limits of perception and belief, for example:  

• William Blake’s celestial visions 
• Léon Spilliaert's mysterious paintings 
• Penny Slinger's spectral photographs 
• Daniel Martin Diaz’s symbolic diagrams 

Uniting historical artists with contemporary creators who continue to push at the boundaries of reality, this book asks: what worlds exist alongside our own—and how do artists give form to what can’t be seen?

The Art of the Unknown is an enthralling journey for anyone fascinated by mystery and the esoteric, inviting you to look again at the forces that persist just beyond the threshold of ordinary reality, and to discover how artists have long attempted to make the invisible visible. 


"A welcome inoculation in a time foolishly obsessed with AI." – Megan Bosenbloom, author of Dark Archives

"Every page of this strange and stunning book cracks the doors of perception and reminds us that when faced with life’s eternal questions, art is more powerful than answers." –  Kristen J. Sollée, author of Witches, Sluts, Feminists

• Publication date: 3 September 2026
• Page count: 240
• Dimensions: Height 178 mm; Width 230 mm; Thickness 27 mm
• Publisher: Quarto Publishing PLC
• Format: Hardback
• ISBN-13: 9781805701187