The PDF version is excellent for zooming in on the "folding of the embryo" diagrams. Take a screenshot, paste it into OneNote or Notability, and trace it. You will never forget the difference between the intraembryonic coelom and the yolk sac if you draw it.
If you are in Croatia, Serbia, Bosnia, or Montenegro, here is the direct path: langmanova medicinska embriologija pdf
Highlighting heart tube formation and common septal defects. Respiratory and Digestive Systems Urogenital System Head, Neck, and Central Nervous System (CNS): The PDF version is excellent for zooming in