These are the main two publications to the "Contemporaryý Pračlovek" collection (Contemporary Caveman). The key thought was to characterize caveman drawings in the quite simple way and products that ended up employed at that time... and also within our days. The main just one — “Kuchyňa Pračloveka” (Caveman's Kitchen area) https://maplepublishers.com/blog/what-are-the-areas-to-focus-on-when-you-self-publish-a-book/