I saw this this 16th century book that can be read six different ways on a tumblr and I just had blog it. It is a truly beautiful book from the high middle ages. Here's the information that came with it and some more pictures - enjoy:
"A few months ago, we showed you a dos-à-dos book—one with a hard back that forms the front of another book. This rare book owned by the National Library of Sweden is even more complex. Erik Kwakkel, a medieval book historian at Leiden University, says that this book is actually six books that are each opened differently. Each book opens and closes with a little clasp.
All of the books are devotional texts printed in Germany in the 1550s through 1570s, including a copy of Martin Luther’s widely-read The Shorter Catechism.The book is currently owned by the National Swedish Library and resides in Stockholm, among the Royal Library’s archives. Only for advanced readers, advanced readers with low attentions spans."
Pic: Stockholm, Royal Library. See the full image gallery here.