Each animal chapter of the Physiologus section is illustrated with a picture of the beast being discussed. There is also a portrait of Epiphanius. The animal illustrations are about 6.7 cm square (8.8 mm including the frame); the portrait is about 10.5 cm tall by 7.2 cm wide (14 cm x 8.5 cm including the frame), and are all copperplate engravings. There are eight woodcut decorated initials; the printer's mark on the title page is also a woodcut.
The illustrations are often complex, with many interesting details. Some of those details will be discussed in the following sections.