Board Thread:Questions and Answers/@comment-25051789-20141129165720/@comment-5230978-20141204003248

The reading order that would give an (almost) immediate and complete understanding is the following: volumes 1~13, SS, volumes 14~16, SS2, SP, 17~22. Then you should read the side stories: Norse mythology (or Kanzaki SS), Love Letter SS, Road to Endymion, Necessarius SS (before reading the last two, you should watch the movie). After these you can readi New Testament, the sequel, starting from the first volume and continuing normally. There is also Railgun manga with some novels, but before giving you the order to follow for its reading I'd like to know if you have already watched the Ralgun anime or not.