They are the very first two publications to the "Modern-dayý Pračlovek" series (Modern day Caveman). The key notion was to represent caveman drawings in the very simple way and products which ended up utilized At the moment... but in addition inside our days. The main just one — “Kuchyňa Pračloveka” https://maplepublishers.com/blog/how-to-find-the-best-book-cover-creator/