Welcome to Readingville™, where reading is made fun! This is just phase 1 of the phonics series, these show the core fundamental sounds of phonics, and these sounds appear in a lot of CVC words.
I recommend giving me permission to use the characters. And also, Readingville™ is still Phonics Land™, but Readingville™ is the modern name for Phonics Land™, keep that in mind.