Hagenbeck books in gift shop (all in German)

Surprising to me that at least one of these is not available in an English translation. Maybe he is too obscure of a figure to English readers?

@Arizona Docent
I assume the book pictured on the right "Von Tieren und Menchen" is a just a recent republication of Carl Hagenbeck"s book first published on 1908.

In which case, there was an English translation "Of Beasts and Men" published in 1909. This English translation was obviously quite popular, more than a century ago, as several different English editions were issued in subsequent years. Interesting how times change.