any text tutorial for beginner?

[denzjos]

Try : https://www.gimp.org/tutorials/
or : https://docs.gimp.org/2.4/pdf/en.pdf
or : https://aanaz.files.wordpress.com/2010/0...523972.pdf
or : https://en.wikibooks.org/wiki/GIMP
or : https://www.bioinformatics.babraham.ac.u...torial.pdf
or : https://mestreacasa.gva.es/c/document_li...057397.pdf
googeled , etc...