Lurking here because I keep seeing her name pop up in dark romance threads. I haven't dived in yet—is the commitment to reading order worth it, or can you just grab any book that sounds good?
Google Books search can be a tool. Search her name, then use the 'Tools' button and filter by publication date. You can set a custom range. This will show you books Google has indexed within that date range. It's a broad net, but it can help you visualize her output year by year, and you might discover obscure titles that aren't on mainstream lists.
Can we just appreciate the luxury of not having a reading order? No spreadsheets, no worrying about spin-offs, no waiting for the next release to continue the story. You have a whole catalog of finished, complete experiences ready to go. Pick one. Devour it. It's done. It's a full meal. The connection is that they're all full meals, not appetizers for a main course that's still cooking. In a world of serialized stories, that's a beautiful, simple thing.
It's a testament to her skill that readers are trying to find links. She creates such a distinct, enveloping world in each book that we assume they must all be part of one giant tapestry. But I think she's just that good at world-building in a compact format. Each book feels like it could be connected, which is a neat trick.
Is there a wiki? There should be a fan wiki for this. Mapping the families (De Santis, Scafoni, etc.) and their alliances/enmities across the books would be a project. The chronology is secondary to those relationships. Who owes whom a debt? Which family has a treaty with which? That's the real 'order' of operations.