The red monster sounds out the vowels 'a', 'e', 'i', 'o' and 'u'. NARRATOR: Ah, eh, ii, ohh and uhh. Every word needs one. All the other letters are called consonants, and there's quite a lot of them.

Jon Youshaei is a cartoonist, marketer and writer who created Every Vowel, a comic series that's heralded as the "Dilbert for millennials" with 400,000+ readers. He's also a marketing manager at ...

The red monster sounds out the vowels 'a', 'e', 'i', 'o' and 'u'. NARRATOR: Ah, eh, ii, ohh and uhh. Every word needs one. All the other letters are called consonants, and there's quite a lot of them.