They are the first two publications for that "Modern-dayý Pračlovek" collection (Fashionable Caveman). The main strategy was to signify caveman drawings within a very simple way and items that had been used at that time... but in addition within our days. The very first one — “Kuchyňa Pračloveka” (Caveman's Kitchen https://maplepublishers.com/blog/how-to-start-your-career-as-a-fiction-writer-by-self-publishing-a-book/