| 9 | Amazing Spider-Man, The | 1st Appearance of Doctor Bromwell; 1st appearance of Electro; Origin of Electro |
| 9/A | Amazing Spider-Man, The | 1st appearance of Electro; Origin of Electro; 1st Appearance of Doctor Bromwell |
| 9 | Amazing Spider-Man, The (UK Edition) | 1st Appearance of Doctor Bromwell; 1st appearance of Electro; Origin of Electro |
| 331 | Batman | 1st Appearance of Electrocutioner |
| 331/NS | Batman | 1st Appearance of Electrocutioner |
| 46 | New Adventures of Superboy, The | 1st appearance of Trouble Clef; 1st appearance of Venus the Flying Trap; 1st appearance of Hitpit; 1st appearance of Decibel; 1st appearance of Overseer; 1st appearance of Electron; Dial “H’” for Hero; Superboy |
| 46/NS | New Adventures of Superboy, The | 1st appearance of Decibel; 1st appearance of Electron; 1st appearance of Hitpit; 1st appearance of Overseer; 1st appearance of Trouble Clef; 1st appearance of Venus the Flying Trap; Dial “H’” for Hero; Superboy |
| 1 | Science Comics (Fox) | 1st Appearance of The Eagle (Bill Powers); 1st appearance of Electro (Jim Andrews); 1st appearance of Cosmic Carson; 1st appearance of Perisphere Payne; 1st appearance of Marga the Panther Woman; 1st appearance of Navy Jones; Origin of The Eagle; Origin of Marga the Panther Woman; Origin of Electro; Origin of Navy Jones |
| 11 | Spider-Man 2099 (3rd Series) | 1st appearance of Sinister Six 2099; 1st appearance (full) of Doctor Octopus 2099; 1st appearance of Electro 2099; 1st appearance of Sandwoman 2099 |
| 10 | Spider-Man Classics | 1st appearance of Dr. Bromwell; 1st appearance of Electro; Origin of Electro |
| 10/NS | Spider-Man Classics | 1st appearance of Dr. Bromwell; 1st appearance of Electro; Origin of Electro |
| 20 | Spider-Man Collectible Series | Reprints from Amazing Spider-Man #9; 1st appearance of Electro; Origin of Electro |