When I was a child I loved to bury myself in the centrefold cutaway illustrations of the monthly scientific magazines my father subscribed to for me. Cars, tractors, ships, trains, engines — I loved every tiny detail. I loved pretending I was one of the tiny men in the pictures. As an adult, I appreciate these drawings not only as educational objects but as beautiful pieces of art, unfortunately sometimes created by forgotten or unknown artists. I dare you to disagree with me after checking out these 20 drawings from the history of this amazing genre.