The Spectre first appeared in a next issue ad in More Fun Comics #51 (January 1940).

Since that time, the character has had numerous series and tons of guest appearances. He is one of the most powerful beings in the DC Universe.

The Spectre Series 1
Spectre #1	Spectre #2	Spectre #3	Spectre #4
Spectre #5	Spectre #6	Spectre #7	Spectre #8
Spectre #9	Spectre #10

The Spectre Series 2
Spectre - Series 2 #1	Spectre - Series 2 #2	Spectre - Series 2 #3	Spectre - Series 2 #4
Spectre - Series 2 #5	Spectre - Series 2 #6	Spectre - Series 2 #7	Spectre - Series 2 #8
Spectre - Series 2 #9	Spectre - Series 2 #10	Spectre - Series 2 #11	Spectre - Series 2 #12
Spectre - Series 2 #13	Spectre - Series 2 #14	Spectre - Series 2 #15	Spectre - Series 2 #16
Spectre - Series 2 #17	Spectre - Series 2 #18	Spectre - Series 2 #19	Spectre - Series 2 #20
Spectre - Series 2 #21	Spectre - Series 2 #22	Spectre - Series 2 #23	Spectre - Series 2 #24
Spectre - Series 2 #25	Spectre - Series 2 #26	Spectre - Series 2 #27	Spectre - Series 2 #28
Spectre - Series 2 #29	Spectre - Series 2 #30	Spectre - Series 2 #31

The Spectre Series 3
Spectre - Series 3 #0	Spectre - Series 3 #1	Spectre - Series 3 #2	Spectre - Series 3 #3
Spectre - Series 3 #4	Spectre - Series 3 #5	Spectre - Series 3 #6	Spectre - Series 3 #7
Spectre - Series 3 #8	Spectre - Series 3 #9	Spectre - Series 3 #10	Spectre - Series 3 #11
Spectre - Series 3 #12	Spectre - Series 3 #13	Spectre - Series 3 #14	Spectre - Series 3 #15
Spectre - Series 3 #16	Spectre - Series 3 #17	Spectre - Series 3 #18	Spectre - Series 3 #19
Spectre - Series 3 #20	Spectre - Series 3 #21	Spectre - Series 3 #22	Spectre - Series 3 #23
Spectre - Series 3 #24	Spectre - Series 3 #25	Spectre - Series 3 #26	Spectre - Series 3 #27
Spectre - Series 3 #28	Spectre - Series 3 #29	Spectre - Series 3 #30	Spectre - Series 3 #31
Spectre - Series 3 #32	Spectre - Series 3 #33	Spectre - Series 3 #34	Spectre - Series 3 #35
Spectre - Series 3 #36	Spectre - Series 3 #37	Spectre - Series 3 #38	Spectre - Series 3 #39
Spectre - Series 3 #40	Spectre - Series 3 #41	Spectre - Series 3 #42	Spectre - Series 3 #43

Spectre - Series 3 #44	Spectre - Series 3 #45	Spectre - Series 3 #46	Spectre - Series 3 #47
Spectre - Series 3 #48	Spectre - Series 3 #49	Spectre - Series 3 #50	Spectre - Series 3 #51
Spectre - Series 3 #52	Spectre - Series 3 #53	Spectre - Series 3 #54	Spectre - Series 3 #55
Spectre - Series 3 #56	Spectre - Series 3 #57	Spectre - Series 3 #58	Spectre - Series 3 #59
Spectre - Series 3 #60	Spectre - Series 3 #61	Spectre - Series 3 #62

The Spectre Series 4
Spectre - Series 4 #1	Spectre - Series 4 #2	Spectre - Series 4 #3	Spectre - Series 4 #4
Spectre - Series 4 #5	Spectre - Series 4 #6	Spectre - Series 4 #7	Spectre - Series 4 #8
Spectre - Series 4 #9	Spectre - Series 4 #10	Spectre - Series 4 #11	Spectre - Series 4 #12
Spectre - Series 4 #13	Spectre - Series 4 #14	Spectre - Series 4 #15	Spectre - Series 4 #16
Spectre - Series 4 #17	Spectre - Series 4 #18	Spectre - Series 4 #19	Spectre - Series 4 #20
Spectre - Series 4 #21	Spectre - Series 4 #22	Spectre - Series 4 #23	Spectre - Series 4 #24
Spectre - Series 4 #25	Spectre - Series 4 #26	Spectre - Series 4 #27

Wrath of The Spectre
Wrath of the Spectre #1	Wrath of the Spectre #2	Wrath of the Spectre #3	Wrath of the Spectre #4