These are generally the 1st two publications for the "Contemporaryý Pračlovek" sequence (Modern day Caveman). The primary thought was to characterize caveman drawings inside a quite simple way and items that have been used at that time... but in addition within our times. The first one particular — “Kuchyňa Pračloveka” https://maplepublishers.com/blog/how-to-motivate-more-readers-to-buy-your-book/