These are the first two publications for the "Modern-dayý Pračlovek" sequence (Present day Caveman). The most crucial idea was to depict caveman drawings in a very very simple way and products that had been employed at that time... and also within our days. The very first one — “Kuchyňa Pračloveka” https://maplepublishers.com/blog/how-to-start-your-self-publishing-endeavour/