These are typically the 1st two publications for your "Moderný Pračlovek" series (Present day Caveman). The most crucial idea was to depict caveman drawings inside a very simple way and products that had been employed at that time... and also in our days. The very first 1 — “Kuchyňa Pračloveka” https://maplepublishers.com/blog/why-should-you-trust-maple-publishers-to-publish-your-next-book/