Lists number 14 so may be first edition? A court of mist and fury - perfect, excellent condition, unread. I think this is a first edition as it shows a 1&2? Or it may be 12.
I'm not an expert on first editions I'm afraid. A court of wings and fury - good condition - very slight yellowing of pages, some creases down the spine from being read once, the corners are a teeny bit dog eared but nothing too major. A court of frost and starlight - perfect, excellent condition, unread. Lists a 1 in the number system, so may be a first edition.
A court of silver flames - good condition - a few creases down the spine from bring read, a slight knock to the left lower side front cover.