Read or Die is, literally, a nice anime. It has all the elements necessary for an anime to be considered good, but it's artistic value is not that high to be considered memorable or a masterpiece. And that's exactly why it's such an enjoyable show: instead of trying to be legendary or gather a huge number of fans, it embraces it's simplicity and just tries to be a good action anime.
==============================================
Story: 7
Read or Die is about an agent trying to stop some bad guys from killing everybody. It doesn't get any deeper than that, really. What makes the story interesting is the originality. For starters, the main character is able to control paper and her alias is "The Paper". Oh, and did you think she is some sort of spy working for a secret agency? Not exacly, she works for a secret brech of the British Library. Yeah, the British Library.
The villains are I-Jin, clones of historical figures. So you should expect to see things such as Gennai Hiraga using a lightsaber, Jean Henri Fabre controlling insects and Beethoven killing people with his music.
==============================================
Art: 9
There's not that much to say here. As expected of a short OVA, the quality is very good, despite having been produced in the beginning of the century. If you aren't picky about the art in an anime, this shouldn't bother you.
==============================================
Sound: 9
Again, not much to say. The voice acting was satisfactory and the musics were used in the correct moments, creating good atmospheres/situations.
=============================================
Character: 10
That's where the OVA shines: the characters. Each of the protagonists is very interesting and charismatic, from the tsundere Nancy to the superstitious Drake. The protagonist, Yomiko Readman, is the exact opposite of what you would expect from a top agent: impulsive, book otaku, clumsy and often fights in a very odd, but creative, manner. She is and adorable character able to manipulate paper and create a variety of weapons and tools with it.
Unfortunately, there is few space for character development. But even limited by 3 episodes, the show is able to establish a connection between the spectator and the characters. Read or Die is very action-oriented, but the characters are a very important part and their moments of interaction are simply wonderful. The lines aren't superficial or mechanical, but natural and full of life.
=============================================
Enjoyment: 10
Not only the show has originality, charismatic characters, a simple and interesting story as nice action sequences. The I-Jin have unique abilities and the protagonist can use paper to build airplanes, swords, shields etc. Now put these guys in a fight. You know what you get? Amazing and incredible fights, that's what.
With so many awesome moments, you will probably want to see them again, so the rewatch value is very high.
=============================================
Overall: 7
If you want to see the sort version of the review, here it is: just watch it. There is no need for a detailed analysis to understand Read or Die. Maybe you like it because of the action, maybe because of the originality, maybe because of the characters, but in the end, you just like it.