Some More of God's Greatest Mistakes is the second installment in a trilogy written by Oolon Colluphid, the other two parts being Where God Went Wrong and Who is this God Person Anyway? Colluphid's trilogy of 'philosophical blockbusters' is less controversial than that wholly remarkable book, The Hitchhiker's Guide To The Galaxy.
It is possible that it is related to Colluphid's other book, Well, That About Wraps It Up For God, based on the theory that the existence of the Babel Fish proves the non-existence of God, as they are both related to the subject of God.
The symbol on the cover represents the male gender. It is likely that the book is about where God went wrong in designing man (or simply in creating humans at all); compare the cover of Where God Went Wrong.
Some More of God's Greatest Mistakes is mentioned in: