Extended data:
When designing a normal book, it is related to the size of a large piece of paper: 31x 43 (78.74 cm x109.22 cm). This paper is folded in half to become two (four pages) at a time, which is called folio; When folded in half again, it is folded into four parts (eight pages), which is called quarto; When folded in half again, it is folded into eight (sixteen pages), which is called octave; When folded in half again, it becomes sixteen (thirty-two pages), which is called sixteen; And so on. This is the historical origin of the size of the book, and it is still called this.
Size type
16K hardcover book
Finished product size: 260 x185 mm;
Version size: 215x138mm;
Appointment to appointment: 46mm
Foot to foot: 40mm
Flip to flip: 60 mm
16K paperback
Finished product size: 260 x185 mm;
Version size: 215x138mm;
Appointment to appointment: 50mm
Foot to foot: 40mm
Turn over and over: 60mm
Da 16K hardcover book
Finished product size: 297X2 10mm.
Version size: 245 x165 mm;
Appointment to appointment: 48mm
Foot to foot: 40mm
Flip to flip: 54 mm
Da 16K paperback book
Finished product size: 297 x 210 mm;
Version size: 245 x165 mm;
Appointment to appointment: 50mm
Foot to foot: 40mm
Flip to flip: 52 mm.
32K hardcover book
Finished product size:184 x130 mm;
Version size:153 x100 mm;
Appointment to appointment: 32mm
Turn over: 36mm
Foot to foot: 30mm
Head to head: 48 mm
32K paperback book
Finished product size:184 x130 mm;
Version size:158 x100 mm;
Appointment to appointment: 36mm
Turn over: 36mm
Foot to foot: 30mm
Head to head: 48 mm
Big 32K hardcover book
Finished product size: 204x140mm;
Version size:165 x107 mm;
Appointment to appointment: 34mm
Turn it over: 42mm
Foot to foot: 38mm
Head to head: 52 mm.
Big 32K paperback book
Finished product size: 204x140mm;
Version size:159 x103 mm;
Appointment to appointment: 42mm
Turn over: 32mm
Foot to foot: 34mm
Head to head: 54 mm
64K hardcover book
Finished product size:130x92mm;
Version size:103x70mm;
Appointment to appointment: 24mm
Turn over: 28mm
Foot to foot: 26mm
Head to head: 40 mm.
64K paperback book
Finished product size:130x92mm;
Version size:103x70mm;
Reservation to reservation: 27mm
Turn over: 27mm
Foot to foot: 26mm
Head to head: 40 mm.
References:
Baidu encyclopedia-book size