xxxHolic is a series that ties in quite closely with Tsubasa Reservoir Chronicles, but for the most part, you don't really need to read TRC in order to understand xxxHolic until you get to about volume 11 or 12. Once you get to that point, though, the two series get heavily intertwined with each other so it might be a good idea to read TRC, anyway, so you don't end up reading 100+ chapters in one go like I did in order to understand what was going on in xxxHolic...Even so, it's interesting just to see where the two plots meet and how one thing that happens in one story makes an impact on what happens in the other.

The story begins quite simply, and for the first bit, the story arcs are somewhat episodic - Yuuko gets a customer, Watanuki gets involved, something happens, and the issue is resolved for better or for worse. At the same time, however, little by little, more is revealed about the big underlying plot and about each character. On the surface, everyone is one way but underneath, you find that there's much more to them than originally thought. And reading back on the older chapters, it's clear that the hints were all there. In typical CLAMP fashion, however, once something is revealed, it seems to be even more complicated and confusing than before, but gradually, things become untangled. Nevertheless, be prepared for some confusion.

Once you get into the main storyline, the plot really shoots forward. There are still a couple pacing issues since, even when there's a big revelation, the story seems to revert back to another normal story arc like before. To me, anyway, it was a little jolting. However, the story is always interesting and you can really see how the story unfolds, slowly but surely, and it's interesting to see how each story arc changes the characters and allows them to mature - and it is this theme that I see recurring through each arc.

Which brings me to the characters! xxxHolic enjoys a relatively small yet diverse cast. Here, you won't have to memorize two or three dozen names like in some other series. Instead, you have your main characters - Watanuki, Yuuko, and Doumeki - and then a handful of recurring characters. At first, they all seem to be somewhat stock-type characters, but like I said, there is more to them than originally thought, and as the story unfolds, they grow and mature. And interestingly, even Watanuki's positive traits are turned against him and he is forced to question his motives and his decisions, and he matured as a result. Ichihara Yuuko, the enigmatic Time-Space Witch, is perhaps one of CLAMP's best creations yet. She's as full of mysteries as she is of laughs, yet at the same time, she's realistic and human (seen more towards the later developments in the series). Despite being one of the most powerful characters in the CLAMP universe, she has her limits and vices like anyone else.

The art, like any of CLAMP's works, is simple yet detailed. There are little to no screentones, and CLAMP makes good use of the contrast between black and white. Yet, at the same time, their designs are something to be marvelled at. Yuuko only has perhaps two outfits that she's worn more than once (always at key points of the story), and even Watanuki once notes when she's worn the same thing before. However, CLAMP does seem to be going through a tall-and-lanky-character phase (they've always had tall and thin characters, but they've recently gone into extremes if you compare it to their past works). It takes a bit of time to adjust to, but once you do, you can really appreciate the detail they put into everything.

Overall, xxxHolic is one of my favourite series to date. Its themes are quite mature and there is much to be thought about and explored here. For example, one of the big questions raised early in the series was about fate and destiny - is our path laid out for us when we are born, or do we carve our own path? However, I'll leave the exloration of themes up to you. While the plot, at times, leaves something to be desired, it's still very enjoyable. To me, xxxHolic is like a deep pit of mysteries just waiting to be explored, and watching the mysteries - and their answers - unfold is somehow very satisfying. Yet, even as these mysteries are explored, more questions come up, leading the reader even further into the story.

So, give it a try. I'd definitely recommend this story, especially if you've liked some of CLAMP's other works.