This extensively illustrated book includes 435 images, featuring never-before-seen archival materials and newly commissioned photography of Burden's studio and property. Burden's work, whether realized or unrealized, was fundamentally driven by a speculative approach to artistic production, one that compelled him to interrogate the physical limits of his own body, social mores, institutional capabilities, and scientific forces. Above all, his work repeatedly sought to test the thresholds of presumed impossibility, making his unrealized works the ultimate example of such measures. The sixty-seven artworks included in this publication offer a unique and unprecedented perspective on the life and working process of this formidable artist.