Hey, so I really want to read the blackest night but I cant find a complete list of graphic novels that cover preludes, the events and afterwords. Also some on the internet say read half of one book, hten half of anouther and so on. Is this really necissary as it seems awfull confusing. If it is any help I have green lantern secret origins and the hardcover blackest night. Any help is appreciated.

I don't know about the graphic novels but here's the reading order for the individual issues
 
 00 - Prologue

- Blackest Night: Tales of the Corps #1-3
- Green Lantern Corps: Emerald Eclipse (continues in Green Lantern Corps #39! In issue #38, the black lantern rings start flying, thus, it is the official beginning of the Blackest Night)
- Titans #15 (continues in Blackest Night and in Blackest Night: Titans!)
- Solomon Grundy #7 (continues in Superman/Batman #66!)
- Green Lantern #43 (continues in Green Lantern and Blackest Night!)
- Blackest Night #0 (continues in Blackest Night!)

01 - "The Blackest Night"

01 - Blackest Night #1
02 - Green Lantern #44
03 - Green Lantern Corps #39
04 - Blackest Night #2
05 - Blackest Night: Batman #1
06 - Blackest Night: Superman #1
07 - Blackest Night: Titans #1
08 - Green Lantern #45
09 - Green Lantern Corps #40
10 - Blackest Night #3
11 - Blackest Night: Batman #2
12 - Blackest Night: Superman #2
13 - Blackest Night: Titans #2
14 - Green Lantern #46
15 - Green Lantern Corps #41
16 - Blackest Night: Batman #3
17 - Blackest Night: Superman #3
18 - Blackest Night: Titans #3

02 - "Let there be light..."

19 - Blackest Night #4
20 - Blackest Night: Flash #1
21 - Blackest Night: Wonder Woman #1
22 - Blackest Night: JSA #1
23 - Green Lantern Corps #42
24 - Green Lantern #47
25 - Green Lantern #48
26 - Blackest Night #5
27 - Blackest Night: Flash #2
28 - Blackest Night: Wonder Woman #2
29 - Blackest Night: JSA #2
30 - Green Lantern Corps #43
31 - Green Lantern #49
32 - Blackest Night #6

03 - "Beware their power"

- The Atom & Hawkman #46
- Black Lantern Green Arrow #30 (the numbering comes from Green Arrow/Black Canary)
(probably all the rising titles happens around the same time, but some of them might happen around the same time of the regular tie-ins...)

- Blackest Night: Flash #3
- Blackest Night: Wonder Woman #3
- Blackest Night: JSA #3
- Green Lantern Corps #44
- Green Lantern #50 (special 50th issue)
- Blackest Night #7
- Green Lantern #51
- Green Lantern Corps #45
- Blackest Night #8 (FINAL ISSUE!)

Okay guys, I hope this helps people like me. I have compiled a list of everything that had the blackest night header (hopefully) they are not in reading order but show what issues can be bought in graphic novel format and what will have to bought individually, I hope it helps....
 
Available in the blackest night graphic novel:
blackest night 0-8
 
in blackest night: green lantern:
green lantern 43-52
 
in blackest night rise of the black lanterns:
atom & hawkman 46
green arrow 30
adventure comics 7
starman 81
the question 37
catwoman 83
wierd western tales 71
the power of shazam 48
the phantom stranger 42
 
in blackest night: black lantern corps v.1 :
blackest night: titans 1-3
blackest night: batman 1-3
blackest night: superman 1-3
 
in blackest night: black lantern corps v.2 :
blackest night: flash 1-3
blackest night : wonderwoman 1-3
blackest night: JSA 1-3
 
in blackest night: green lantern corps :
green lantern corps 39-47
 
in blackest night: tales of the corps:
blackest night tales of the corps 1-3
green lantern corps 49
adventure comics 4 & 5
 
To be bought individually :
green lantern corps 33-3, 48, 50 - 56
titans 15
JLA 39 & 40
superman / batman 66 & 67
solomon grundy 7
suicide squad 67
secret six 17 & 18
booster gold 26 & 27
teen titans 77 & 78
doom patrol 4 & 5
outsiders 24 & 25
r.e.b.e.l.s. 10 & 11
action comics 890
untold tales of the blackest night 1
 
 
Hope it helps as some sort of pick up list :)

I would just like to add that the prelude graphic novel tales of the red lanterns has green lantern 26-28 and 36 - 38 (the last of wich are on the to buy seperatly list)
 
Sins of the star sapphire is anouther prelude tht has green lantern 27-32

Okay guys, I hope this helps people like me. I have compiled a list of everything that had the blackest night header (hopefully) they are not in reading order but show what issues can be bought in graphic novel format and what will have to bought individually, I hope it helps....
 
Available in the blackest night graphic novel:
blackest night 0-8
 
in blackest night: green lantern:
green lantern 43-52
 
in blackest night rise of the black lanterns:
atom & hawkman 46
green arrow 30
adventure comics 7
starman 81
the question 37
catwoman 83
wierd western tales 71
the power of shazam 48
the phantom stranger 42
 
in blackest night: black lantern corps v.1 :
blackest night: titans 1-3
blackest night: batman 1-3
blackest night: superman 1-3
 
in blackest night: black lantern corps v.2 :
blackest night: flash 1-3
blackest night : wonderwoman 1-3
blackest night: JSA 1-3
 
in blackest night: green lantern corps :
green lantern corps 39-47
 
in blackest night: tales of the corps:
blackest night tales of the corps 1-3
green lantern corps 49
adventure comics 4 & 5
 
To be bought individually :green lantern corps 33-3, 48, 50 - 56 titans 15 JLA 39 & 40 superman / batman 66 & 67 solomon grundy 7 suicide squad 67 secret six 17 & 18 booster gold 26 & 27 teen titans 77 & 78 doom patrol 4 & 5 outsiders 24 & 25 r.e.b.e.l.s. 10 & 11 action comics 890 untold tales of the blackest night 1   Hope it helps as some sort of pick up list :)