They're the initial two publications for the "Modern dayý Pračlovek" sequence (Modern-day Caveman). The main concept was to represent caveman drawings in a quite simple way and items that ended up employed at that time... but in addition inside our times. The primary just one — “Kuchyňa Pračloveka” (Caveman's Kitchen https://maplepublishers.com/blog/category/blog/page/2/