{"schema_version":"bf_book_companion_v1","release_id":"20260402T191500Z-bisacv2site-fullset","book":{"amazon_purchase_url":"https://www.amazon.com/dp/1772943541?tag=bookfrontier-20","asin":"1772943541","authors":["Tim Popelier","Emerson Tung","Max Gabriele","M. Chandler"],"book_id":"9781772943542","canonical_url":"https://bookfrontier.com/books/9781772943542","cover_image_url":"https://img.bookfrontier.com/9781772943542.jpg?v=20260402T191500Z-bisacv2site-fullset%3A2026-04-05T10%3A13%3A18Z","description":"Giant armored vehicles called tankheads clash on the battlefields of the Neverending War. These walking behemoths come in many devastating forms, battling across land, air and sea. From the minds of artist Emerson Tung (DOOM Eternal, Warhammer 40K) and writer Tim Popelier, TANKHEAD is a world-building art book that explores these walking weapons and their conflict-filled history.","forthcoming":false,"isbn13":"9781772943542","publication_date":"20240709","publisher":"UDON Entertainment","slug":"tankhead-mechanical-encyclopedia-artbook","subtitle":"","title":"TANKHEAD - Mechanical Encyclopedia Artbook"},"discovery":{"categories":{"all":[{"bisac_code":"HIS027240","confidence_band":"medium","label":"Military Vehicles","score":0.7267,"source":"bisac_hint_model"},{"bisac_code":"HIS027330","confidence_band":"medium","label":"Land Combat Vehicles","score":0.7213,"source":"bisac_hint_model"},{"bisac_code":"HIS027080","confidence_band":"medium","label":"Weapons Through History","score":0.721,"source":"bisac_hint_model"}],"hint":[{"bisac_code":"HIS027240","confidence_band":"medium","label":"Military Vehicles","score":0.7267,"source":"bisac_hint_model"},{"bisac_code":"HIS027330","confidence_band":"medium","label":"Land Combat Vehicles","score":0.7213,"source":"bisac_hint_model"},{"bisac_code":"HIS027080","confidence_band":"medium","label":"Weapons Through History","score":0.721,"source":"bisac_hint_model"}],"publisher":[{"bisac_code":"ART016010","confidence_band":"high","label":"Artists' Books","score":1,"source":"onix_publisher_code"},{"bisac_code":"ART023000","confidence_band":"high","label":"Pop Culture & Art","score":1,"source":"onix_publisher_code"}]},"genres":[{"label":"Military Vehicles","score":0.7267,"slug":"military-vehicles"},{"label":"Land Combat Vehicles","score":0.7213,"slug":"land-combat-vehicles"},{"label":"Weapons Through History","score":0.721,"slug":"weapons-through-history"}],"reader_fit":["Good for readers who enjoy Military Vehicles","Good for readers who enjoy Military Vehicles and Land Combat Vehicles.","Strong fit for readers who prefer grounded, real-world context."],"related_lists":[],"series":null,"similar_books":[{"authors":["DK","Smithsonian Institution","David Willey"],"book_id":"9781465457592","cover_image_url":"https://img.bookfrontier.com/9781465457592.jpg?v=20260402T191500Z-bisacv2site-fullset%3A2026-04-05T10%3A13%3A18Z","score":16.2058,"title":"Tank","url":"https://bookfrontier.com/books/9781465457592"},{"authors":["Alex Harris","JJ Molloy","Joshua S. Bettis","Josh Denning"],"book_id":"9781497104013","cover_image_url":"https://img.bookfrontier.com/9781497104013.jpg?v=20260402T191500Z-bisacv2site-fullset%3A2026-04-05T10%3A13%3A18Z","score":13.6974,"title":"A Visual History of World Military Machines","url":"https://bookfrontier.com/books/9781497104013"},{"authors":["G.M. Barnes"],"book_id":"9781629143941","cover_image_url":"https://img.bookfrontier.com/9781629143941.jpg?v=20260402T191500Z-bisacv2site-fullset%3A2026-04-05T10%3A13%3A18Z","score":13.6279,"title":"Weapons of World War II","url":"https://bookfrontier.com/books/9781629143941"},{"authors":["William E. Hiestand","Henry Morshead","Edouard A. Groult","& 0 more"],"book_id":"9781472861443","cover_image_url":"https://img.bookfrontier.com/9781472861443.jpg?v=20260402T191500Z-bisacv2site-fullset%3A2026-04-05T10%3A13%3A18Z","score":13.5639,"title":"Soviet Tanks at Kursk 1943","url":"https://bookfrontier.com/books/9781472861443"},{"authors":["DK","A. Gilbert","Philip Parker","R Holmes"],"book_id":"9781465450968","cover_image_url":"https://img.bookfrontier.com/9781465450968.jpg?v=20260402T191500Z-bisacv2site-fullset%3A2026-04-05T10%3A13%3A18Z","score":12.856,"title":"Weapon","url":"https://bookfrontier.com/books/9781465450968"},{"authors":["DK","D.K. Publishing"],"book_id":"9781465488763","cover_image_url":"https://img.bookfrontier.com/9781465488763.jpg?v=20260402T191500Z-bisacv2site-fullset%3A2026-04-05T10%3A13%3A18Z","score":12.7784,"title":"Warfare","url":"https://bookfrontier.com/books/9781465488763"},{"authors":["DK","Gareth Jones"],"book_id":"9781465436085","cover_image_url":"https://img.bookfrontier.com/9781465436085.jpg?v=20260402T191500Z-bisacv2site-fullset%3A2026-04-05T10%3A13%3A18Z","score":12.7653,"title":"Military History","url":"https://bookfrontier.com/books/9781465436085"},{"authors":["Theo Emery"],"book_id":"9780316264105","cover_image_url":"https://img.bookfrontier.com/9780316264105.jpg?v=20260402T191500Z-bisacv2site-fullset%3A2026-04-05T10%3A13%3A18Z","score":12.6725,"title":"Hellfire Boys","url":"https://bookfrontier.com/books/9780316264105"}],"topics":[{"evidence_refs":["keyword:alternate history"],"label":"History","score":0.9238,"slug":"history"},{"evidence_refs":["keyword:military science fiction"],"label":"Science","score":0.2945,"slug":"science"},{"evidence_refs":["keyword:world-building"],"label":"World","score":0.2022,"slug":"world"},{"evidence_refs":["keyword:military science fiction"],"label":"Military","score":0.1382,"slug":"military"}],"what_you_get":["Themes: History, Science, Military.","Reading lane: Military Vehicles and Land Combat Vehicles.","Publisher: UDON Entertainment."]},"llm_signals":null,"source_presence":{"amazon":true,"book_detail":true,"goodreads":true,"llm_signals":false,"similarity_seed":true},"stats":{"amazon_ratings_count":0,"goodreads_ratings_count":15,"goodreads_reviews_count":5,"quality_score":0.8414}}