Tankograd has something very special for us in the form of a book titled 'Full Story of the Leopard 2 Main Battle Tank', with no less than 624 pages this publication is illustrated with 1229 colour photographs and 148 graphics plus a foldout with 1/35 scale line-drawings of the newest addition to the range, the Leopard 2A7V!
This is partial text from the full article (usually with photos) at https://armorama.com/news/full-story-of-the-leopard-2-main-battle-tank