John Hartley (5) (–1962)

1957 (2) artificial languages (9) Box 2 (2) conlang (8) constructed languages (3) dictionary (2) education (3) Esperanto (92) Esperanto language (11) Esperanto-lernado (4) Europe (2) foreign language (7) Foreign Language Learning (2) grammar (5) his (2) how-to (3) language (60) language learning (3) languages (14) linguistics (4) non-fiction (20) reference (13) teach yourself (14) textbook (5) to-read (3) TYS (3) via �wikipedia� �VIAF� �wikidata� (4) ♠♠♥♥♦♦♣♣ (4) ✓ (4) ✓-- (4)