They are the primary two publications for that "Contemporaryý Pračlovek" series (Fashionable Caveman). The primary thought was to represent caveman drawings in the quite simple way and products which ended up used At the moment... but also in our days. The main a single — “Kuchyňa Pračloveka” (Caveman's Kitchen) — https://maplepublishers.com/blog/5-considerations-when-hiring-a-book-illustration-agency-or-a-professional/