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The DC Comics Year by Year A Visual Chronicle
is an over sized hardbound (352 pg) book that's pretty much what you would expect based on the title. I recently got this thing as a gift. Each year is it's own chapter that consists of several pages highlighting the notable issues and mini-series of each year. Also pretty cool is that each page along the bottom has a foot note of the big world wide and or national news story of that particular month for each year/chapter.
As you can see Suicide Squad #1
gets a shout out for the months March - December for the1987 chapter. But you can see some other milestone issues on these two pages which I actually used to have except for that Batman issue. The other Squad issue that shows up in the book is Suicide Squad #23
(1989 chapter) because it was the first time Oracle (Barbara Gordon) initiated contact with Belle
Reve effectively making that issue Oracle's first appearance in the DC
Universe. A Google search (images tab) with key words DC Comics Year by Year A Visual Chronicle
will show you more of the book
and you can also find reviews on Youtube for it as well.