Habeslector [sic] Iohannis de Sacro Busto Sphere textum
This is a 1515 Paris edition of Johannes de Sacrobosco's medieval astronomy textbook, The Sphere, printed for students and scholars with commentary by Pedro Ciruelo and Pierre d'Ailly and sold by Jean Petit. The pictures are small black-line diagrams and woodcuts: a climate-zone circle, dense ruled planetary-motion charts, a plain triangle in a circle, and a printer's emblem with fleur-de-lis and lions. A designer might draw on their clean, schematic line work and the bold, crowded typographic blocks around the figures.
![Picture 1 of 6 from Habeslector [sic] Iohannis de Sacro Busto Sphere textum (1515), leaf 3](https://img.insideoutlibrary.com/img/200/ia-habeslectorsicio00sacr-3-0.webp)
![Picture 2 of 6 from Habeslector [sic] Iohannis de Sacro Busto Sphere textum (1515), leaf 7](https://img.insideoutlibrary.com/img/200/ia-habeslectorsicio00sacr-7-0.webp)
![Picture 3 of 6 from Habeslector [sic] Iohannis de Sacro Busto Sphere textum (1515), leaf 60](https://img.insideoutlibrary.com/img/200/ia-habeslectorsicio00sacr-60-1.webp)
![Picture 4 of 6 from Habeslector [sic] Iohannis de Sacro Busto Sphere textum (1515), leaf 127](https://img.insideoutlibrary.com/img/200/ia-habeslectorsicio00sacr-127-0.webp)
![Picture 5 of 6 from Habeslector [sic] Iohannis de Sacro Busto Sphere textum (1515), leaf 145](https://img.insideoutlibrary.com/img/200/ia-habeslectorsicio00sacr-145-0.webp)
![Picture 6 of 6 from Habeslector [sic] Iohannis de Sacro Busto Sphere textum (1515), leaf 167](https://img.insideoutlibrary.com/img/200/ia-habeslectorsicio00sacr-167-0.webp)