These are typically the first two publications to the "Modern-dayý Pračlovek" sequence (Modern Caveman). The principle concept was to symbolize caveman drawings in a quite simple way and products which had been made use of at that time... and also inside our times. The 1st just one — “Kuchyňa Pračloveka” https://maplepublishers.com/blog/4-things-to-do-when-you-begin-a-self-publishing-journey/