I love these ones on ETSY:
-For Preschoolers who are just learning letters:
- This alphabet tree from Decalsmurals on ETSY is really cute and would help with letter recognition.
- This one from Sixunderatree from ETSY is great to teach capital and lowercase letters.
- This ABC blocks decal from Goatgrinstudio on ETSY is my favorite:
-For more advanced readers who can build their own words:
- This chalkboard tree is great for preschoolers from Offthewallexpresssions on ETSY: