A fourth load of old books

"These Things Didn't Happen So I Won't Tell You About Them"

"I am Dead" by A. N. Author
"Am I" by A. N. Other
  – counts as one choice 50p

"The Colour Blue and How to Experience It"

"A practical Guide to Vomiting"

"The Subjective Idealist's Handbook of Lampposts and Other Lampposts"

"Stupidity and How to Acquire It"

"Beans"

"Counting Mice"