These are generally the initial two publications for the "Modern-dayý Pračlovek" collection (Modern Caveman). The main notion was to depict caveman drawings in a quite simple way and products that ended up used At the moment... but in addition within our times. The first one — “Kuchyňa Pračloveka” (Caveman's Kitchen) https://maplepublishers.com/blog/4-mandatory-services-you-need-before-self-publishing-a-book/