What are these sort of puzzles called? eg. 51 DTC

[HoollyWugger]

Answer : 51 Days To Christmas

There's others like 4SIAY - 4 Seasons In A Year

but I can't remember many more, and can't get google to understand what I want

Ditloids

Dingbats?

I thought dingbats but then I though they were more like:

|R|E|A|D| = Read between the lines
Or
EYES EYES EYES EYES = four eyes.

They’re not dingbats - those are pictures that you get a phrase from as PP had said.

They’re definitely called ditloids!

You've lived up to your name MrsHerculePoirot

I've never even heard that word before!

I am a puzzle lover 🤣