This year's calendar includes images from:
Leon Battista Alberti, De statua (1707)
John Worlidge, Systema horticulturae (1688)
Sebastiano Serlio, Het eerste [-vijfde] boeck van de architecturen (1616)
William Blake, For Children: The Gates of Paradise (1793)
Giovanni Battista Ferrari, Flora overo cultura di fiori (1638)
Henry Hawkins, Partheneia sacra (1633)