They're the very first two publications for the "Modern dayý Pračlovek" collection (Contemporary Caveman). The primary plan was to depict caveman drawings inside a quite simple way and products which have been used At the moment... but additionally inside our times. The main one — “Kuchyňa Pračloveka” (Caveman's Kitchen area) https://maplepublishers.com/blog/how-to-motivate-more-readers-to-buy-your-book/