Primarily Familia Romana by Hans Oerburg, and then a lot of public-domain Latin readers. There's a guy named Justin Armstrong who maintains a pretty good list

Primarily Familia Romana by Hans Oerburg, and then a lot of public-domain Latin readers. There's a guy named Justin Armstrong who maintains a pretty good list here: https://docs.google.com/spreadsheets/d/1TugURNkc0461IQoToKIlE4hnnbRykRYYxvrfl2X90No/ https://docs.google.com/spreadsheets/d/1TugURNkc0461IQoToKIl...