firstreader

noun
UK /ˌfɜːstˈriːdə/
US /ˌfɝːstˈriːdɚ/

A first reader is a simple book for children who are just learning to read.

The teacher gave each child a firstreader with big letters and bright pictures.


OTHER MEANINGS

2. A person who reads something before anyone else does.

As the firstreader of the manuscript, she caught several errors.

3. A device or program that reads data first in a process.

The firstreader scans each barcode before the packages move on.

4. An introductory guide that gives a first look at a subject.

This little book is a firstreader on astronomy for curious kids.