These are typically the primary two publications for that "Fashionableý Pračlovek" collection (Modern Caveman). The main concept was to depict caveman drawings in a very simple way and products which were used at that time... but additionally inside our days. The primary one — “Kuchyňa Pračloveka” (Caveman's Kitchen area) — https://maplepublishers.com/blog/what-are-the-areas-to-focus-on-when-you-self-publish-a-book/