Teachers of English Language Learners, and researchers (see No Surprise In This Study: Language Learners Retain Vocabulary Better When Connected To Gestures & Images), have known for a long time that drawing pictures of words enhances memories of them.
A new, and exhaustive, study seems to have confirmed that understanding.
You can read a summary of the research here and also watch a video summary in the short video embedded below (I wish more researchers would make videos like this one). In a pleasant surprise, the study itself is available for free online.
I’m adding this post to The Best Sites Where ELL’s Can Learn Vocabulary.