One of the best things about discovering a new favorite author is tracking down their previous novels to savor. As a bonus, since I read them all at once, I get a picture of how the writer develops her craft.
I'm encouraged to discover the ways prose improves, characterizations deepen, settings come into sharper focus and plots twist unexpectedly as I read their earliest works and progress through to the most recent. Here is a short list (in no particular order) with genres, of some authors whose backlist has proved rewarding reading for me. I have added a few hints of their style of writing so you may select your personal favorites.
Holly Lisle - fantasy (intense and with a dark flavor)
S.L. Viehl - science fiction, romance (original, action-filled with unique and lovable characters)
Gaelen Foley - historical romance (I've only read her backlist from The Duke to Her Only Desire, not her latest or earliest books; her research and prose improved markedly in 2004)
Karen Traviss - science fiction, military science fiction (the most alien aliens ever, and blow-you-away plots by a former journalist, also formerly in the military)
Elizabeth Moon - science fiction (deep characters, unusual plots, military sf from a former member of the military - genuine)
Linnea Sinclair - science fiction (original heroine, fun reading, light and smooth)
Madeline Hunter - historical romance (sensual and well-done)
C. J. Cherryh - science fiction (my personal favorite sf writer; incredibly creative stories)
Lisa Kleypas - historical romance (unforgettable characters)
Mary Balogh - historical romance (sweet and light with exceptional settings and characters)
David Brin - science fiction (brilliant professor of science writes heavy but fascinating sf)
I hope you may enjoy exploring these links and find many happy hours of reading from among them. Many of my books are in ebook, that is, digital, format. One of the advantages is being able to add comments in the form of 'bookmarks', without defacing a book. It gives me the opportunity to note my observations on exceptionally good (or occasionally, bad) examples of the writer's craft.