Goes from zero to extremely complex Latin. Whole book is in Latin, no translations.
https://www.amazon.com/Lingua-Latina-Illustrata-Pars-Familia...
The only requirement is knowledge of orthographic alphabet and how each sound is produced. Latin, fortunately, has very simple sounds compared to English or Swedish.
It took me about 2 years to go through both parts and I was amazed at how easy the journey was. Could speak and write Latin fluently without issues.
https://www.amazon.com/Lingua-Latina-Illustrata-Pars-Familia...