These are the 1st two publications for your "Present dayý Pračlovek" collection (Present day Caveman). The key concept was to signify caveman drawings in a very very simple way and products that were being employed at that time... but additionally in our days. The first just one — “Kuchyňa Pračloveka” https://maplepublishers.com/blog/popular-self-publishing-trends-of-this-year/