because of changing format of the review the lifetime of "montejurra" might be divided into 3 phases. the first one lasted from 1960 to mid-1963, when the monthly resembled initially simple and then increasingly ambitious bulletin. published on 35x25 cm sheets, the issues contained almost none to few photographs or pictures of rather poor quality, with text layout usually in two columns and the number of pages growing from 4 to 12. the second phase lasted from mid-1963 to late 1964, when "montejurra" became more of a review. the sheet size was broadened to 42x32 cm, covers contained a full front-page photo, layout became more dynamic, red color was introduced in headings and graphics and photographs started to be omnipresent; the number of pages was ranging from 8 to 14. the third phase lasted from late 1964 until 1971, when "montejurra" assumed shape of a professional magazine, perhaps resemblant of a weekly rather than a monthly. it was re-sized to the original 32x25 cm, full color was introduced to cover and some inside photos, and text was structured in as many as 4 columns; layout gained even more dynamics, with boxes, in-text graphics and introduction of new fonts. issues usually exceeded 28 pages, at times reaching as many as 44.