What are the essential readings for him if i want to start reading Green Arrow
"What are the essential readings for him if i want to start reading Green Arrow"
That depends upon how far back you want to go as he has been around in comics for maybe 30 - 40 yrs.
There have been a number of green arrow comic series over a great many years. I would advise against most of the early stuff as it may not have the direct link to current continuity.
You could pick up issues of the recent Green Arrow series (is it still going) that started maybe about 3 years ago.
This reintroduced Oliver Queen as Green Arrow.
After that you could search for other issues of older series and build up your older background knowledge.
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