They are the main two publications with the "Present dayý Pračlovek" sequence (Modern Caveman). The primary concept was to characterize caveman drawings in a very simple way and products that were being utilized at that time... but in addition within our days. The first one — “Kuchyňa Pračloveka” (Caveman's Kitchen https://maplepublishers.com/blog/what-are-the-top-book-cover-trends-awaits-us-this-year/