> Animal Farm was the first book in which I tried, with full consciousness of what I was doing, to fuse political purpose and artistic purpose into one whole. I have not written a novel for seven years, but I hope to write another fairly soon. It is bound to be a failure, every book is a failure, but I do know with some clarity what kind of book I want to write.

This essay was written in 1946. According to https://en.wikipedia.org/wiki/George_Orwell_bibliography#Nov... consecutive books he published were:

* Coming Up for Air (1939)

* Animal Farm (1945)

Given the "seven years", it appears considered "Coming Up for Air" his previous novel, and "Animal Farm" not a novel. I wonder why?

In any case, the novel that he next wrote “fairly soon”, and which he predicted would be a failure, was:

* Nineteen Eighty-Four (1949)