These are generally the main two publications for your "Contemporaryý Pračlovek" series (Modern Caveman). The principle concept was to signify caveman drawings in a very simple way and items that had been made use of at that time... but also in our times. The first just one — “Kuchyňa Pračloveka” https://maplepublishers.com/blog/4-tips-to-create-a-plot-before-self-publishing-a-book/