Some seller made an attempt to cover up the prices with marker, but it cleaned up fairly nice. Tight and almost square with flat spine. No stamps, marks or writing - a clean copy.

An early novel by Brian W. Aldiss: Bow Down to Nul. When Earthman Gary Towler is off work, he is a pariah. For his task as chief interpreter for the corrupt and tyrannical Nuls makes other humans avoid him as a traitor. He is not trusted by the mammoth 3-armed rulers themselves, especially when they learned that an envoy was on the way to investigate charges of corruption on Earth - for the leaders realized that Gary knew too much. Then the leaders of the human underground resistance demanded Gary's aid or his life. His only way out was to think of a third way.

This was serialized as "X for Exploitation" in New Worlds March to May 1960, and retitled The Interpreter in Britain.