Cover History

First cover design
The original cover design was based on the "Manitoba Tartan" with the consent of the copyright holder.
Second cover design
The cover was redesigned in 1981, when the publisher decided to have a uniform appearance for all its journals.
Current cover design
The redesign of 2007 reflected the publisher's desire to have individual appearances for its hundreds of journals. The cover design was based on Grätzer's book on finite congruence lattices.