Too litle detail to be a biography; not enough textual discussion to be a literary analysis. This is more of a psychoanalysis. Still some interesting information to be gleaned.
Another in the Ungar Modern Literature Monograph series.
I'll never be a speck of dirt in the finger nail of someone like Kafka, artistically or humanly (page 104):
Kafka often went to Steglitz Park. Once he met a little girl who had lost her doll and was weeping desperately. "Your doll is only off on a trip," Kafka comforted the child. "I know because she wrote me a letter." But the little girl was somewhat mistrustful and asked him whether had had the letter with him. Kafka promised to bring it the next day. For three weeks he invented new letters with which he consoled he child until she was finally appeased and dropped the wish to see her doll again.
Someone needs to write a play "Three Weeks with Franz".
The author dropped a few too many names and made a few too many historical allusions without context, but search engines will rectify my lack of knowledge. Kafka does not have an apologist in Baumer, he (though dead) has a friend. Great book!