The Trans Student Educational Resources offers a Gender Unicorn is a simple one page PDF that educates individuals (youth through adult) on:
-Gender Identity
-Gender Expression
-Sex Assigned At Birth
-Physical Attraction
-Emotional Attraction

It is available in English, Spanish, Portuguese, Russian, Japanese, German, French, Turkish and Hungarian. https://transstudent.org/gender/

TSER also produces free infographics: https://transstudent.org/graphics/

Websites:

• Main website - https://transstudent.org/