Board Thread:Questions and Answers/@comment-21324805-20130919192120/@comment-1038387-20130919193134

Yep, just start at issue one and keep reading. You don't have to read everything, just pick a title. Occasionally, there are crossovers (especially, and not very surprising, in the Batman titles) but the majority can just be read in order.

That was the entire point of the reboot: bringing in new readers by not scaring them with tons of history and backstory.