Terra: A Journey (CN: 《Terra: 大地巡游》) is an upcoming official artbook of Arknights published by Hypergryph. It is the first artbook that compiles further details regarding the worldbuilding of Terra such as cultures and histories of Terran nations along with natures of Originium and Terra's biodiversity.
In Arknights' story, this book is an existing one published in the year 1100 and written by a Victorian scholar named E.E. Erickson who spent twenty-three years in traveling across the Terran continent exploring and recording Terrans' cultures. After lecturing in a university for around fifty-one years, he was encouraged by Kal'tsit to write down his account who, in turn, was willing to shares some of her millennia-old knowledge to the old professor.