And/Or Press, 1980. Softcover. Unpaginated, circa 24 pages. 28 x 22. Text in English. Used. VG+. Original calendar published by iconic and wonderful And/Or Press, author of great books like this or this. Each month of the year - a great year by the way ;)- is illustrated with a photograph of the plant. This year is dedicated exclusively to Sinsemilla.The authors have written a brief introduction about why Sinsemilla deserves a special place in their calendar collection for being one of fine marijuanas in the world. By the way, very fine close up studio photos that show off its beauty and and complexity.The world of calendars is amazing, and in any case, this Cannabis Calendar is just one more push to getting high like only as it was done in the past, but without forgetting when the sun enters Piscies, a relevant information and vital important, you know :)