Prodromus dissertationvm cosmographicarvm, continens mysterivm cosmographicvm de admirabili proportione orbium coelestium; deque causis coelorum numeri, magnitudinis, motuumque periodicorum genuinis & propriis, demonstratum per quinque regularia corpora geometrica. Libellus primum Tübingae in lucem datus anno Christi M D XCVI., à M. Ioanne Keplero. Nunc vero post annos 25. ab eodem authore recognitus ..
This is a 1621 Frankfurt astronomy treatise by Johannes Kepler, reissuing his 1596 Prodromus on the geometry of the cosmos, aimed at scholars and university readers. The three pictures are geometric diagrams of circles, inscribed squares and nested planetary spheres with lettered points, and a designer might take from them the dense, labelled line-diagram style of early modern scientific printing.
