Markus Zusak
Scope: Author of La ladrona de libros per Kindle metadata (5 highlights, all fragments). No claims beyond the highlights.

The fragments are scene snippets, not ideas: a character “el malhablado Pfiffikus”, a line “RETRATO DE PFIFFIKUS” with Rudy pointing (“—Eh, mira —señaló Rudy.”), “La tienda había quedado destruida, el mostrador”, and “hombre que se sentaba al lado.” These indicate named characters (Pfiffikus, Rudy) and a destroyed shop, nothing more. No thematic article is warranted.
For fiction authors with fuller coverage see jrr-tolkien and victor-hugo. Jane Austen’s highlights are in jane-austen.