Per Bob Bailey, the cover idea was submitted by Cary Bates as a teenage fan.
Per Bob Bailey, the cover idea and plot that led to this story was submitted by Cary Bates as a teenage fan.
Brainiac revealed to be a computer and not a sentient being.
Begins with an editorial regarding the genesis of Brainiac's new origin. Also, letters of comment from Jeffrey Breeh, Kerry Krammer, E. Nelson Bridwell, Kay Bungard, and Bestor Cooper.
1st appearance of Tharla, Lex Luthor's future wife. From Superman (DC, 1939 series) #168 (April 1964) on she will be renamed as Ardora.
Date of Filing: October 1st, 1963. No circulation figures given.