The TWICEcoaster: Lane 1 Monograph is a limited-edition companion release to TWICE's 3rd Mini Album, released May 15, 2017. It documents the production of the TWICEcoaster: Lane 1 era — covering the "TT" music video shoot and album jacket photoshoot through exclusive behind-the-scenes photos and footage. It includes a 152-page photobook, an approximately 30-minute making-of DVD, and 9 individual member photocards. The content was exclusive to this release and not available elsewhere, making it a sought-after piece for collectors building out the full TT era.