Sadly, Esperanto is only easy to learn if you already speak a European language, and even then it helps even more if you speak one of the languages Zamenhof, its inventor, spoke.
> Zamenhof included in Esperanto every Polish phoneme with a consistently used letter or digraph of its own, leaving out only the ones that are harder to recognise as phonemes: the nasal vowels, “soft” (palatalised) consonants, and /dz/.
http://jbr.me.uk/ranto/#01
> Zamenhof included in Esperanto every Polish phoneme with a consistently used letter or digraph of its own, leaving out only the ones that are harder to recognise as phonemes: the nasal vowels, “soft” (palatalised) consonants, and /dz/.