They Are the first two publications for the "Fashionableý Pračlovek" sequence (Modern Caveman). The leading notion was to symbolize caveman drawings in a very simple way and products that have been utilized at that time... but also inside our days. The first a person — “Kuchyňa Pračloveka” (Caveman's Kitchen) — https://maplepublishers.com/blog/what-formats-you-must-think-about-while-self-publishing-a-book/