In 1967 Penguin books brought out a series of poetry anthologies aimed at a teenage audience. They were called Voices 1, Voices 2 and Voices 3. My mother spotted them I think and got me the series for which I’m thankful. This was about 1969 when I was fourteen or fifteen. These books were a great way to learn to appreciate poetry and also the way the artwork was interspersed with the words it was a great way to learn about art too because without experience these things can seem to be a bit daunting. Second hand copies of the books are easily available at very reasonable prices. If you’re interested I would suggest that your search string contains the name Geoffrey Summerfield who was the bloke who put together the series.
Here are three scans, one from each book
The first book
The second book
The third book