An emblem book is a book collecting emblems with accompanying explanatory text, typically morals or poems. This category of books was popular in Europe during the 16th and 17th centuries.
Wisdom - from George Wither's Book of Emblems (London 1635)
Woodcut from Guillaume de La Perrière, Le Théâtre des bons engins, 1545.
An emblem is an abstract or representational pictorial image that represents a concept, like a moral truth, or an allegory, or a person, like a monarch or saint.
The Wilton Diptych (c. 1395–1399) features angels wearing White Hart (a deer), the personal emblem of King Richard II of England.
House of the Prince of Naples in Pompeii Triclinium Emblem on North Wall
"The big eat the small", a political emblem from an emblem book, 1617