For those who are learning how to play the guitar, and for those who are learning, may want to consider the inkfonts guitar fretboard stickers.
The 2021 version features a two-pack of guitar fretboard decals, six celluloid guitar picks and one guitar bridge pin puller.
While the stickers do help, it’s important to know finger placements. Also, I do recommend putting these on during a time where you are restringing, as it can be a bit challenging to slid the fretboard stickers under the strings.
But for the most part, it works as a very good reference and each fretboard stickers do show the fret markers and the fact that you get guitar picks and a pin puller for under $9, the inkfonts guitar fretboard stickers is definitely worth considering.