They are the first two publications with the "Modern dayý Pračlovek" series (Modern day Caveman). The primary plan was to characterize caveman drawings in a quite simple way and items that ended up used At the moment... and also in our times. The very first a person — “Kuchyňa Pračloveka” https://maplepublishers.com/blog/services-authors-receive-from-self-book-publishers-in-london/