These are generally the 1st two publications to the "Moderný Pračlovek" series (Modern-day Caveman). The most crucial notion was to symbolize caveman drawings in the very simple way and items that had been employed at that time... and also in our times. The very first a person — “Kuchyňa Pračloveka” https://maplepublishers.com/blog/how-to-find-the-best-book-cover-creator/