How to Say "reader" in Spanish
The Spanish word for “reader” is “lector” — A2 level. This is a very common word in everyday Spanish.

Examples
Juan es un gran lector de novelas de misterio.
Juan is a big reader of mystery novels.
El lector de tarjetas de crédito está roto.
The credit card reader is broken.
El autor escribió un mensaje especial para su lector.
The author wrote a special message for his reader.
People vs. Machines
Spanish uses 'lector' for both humans who enjoy books and electronic gadgets that read data. The context usually makes it very clear which one you mean.
The 'Lector' vs 'Lectora' rule
While this entry is for the masculine 'lector,' you should use 'lectora' if you are talking specifically about a female reader.
Don't confuse with 'reading'
Mistake: “Me gusta el lector.”
Correction: Me gusta la lectura.
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