Poetry Book

My teenage son wrote a few poems (approx15) during the covid lockdown its a combination of 2 years of effort. He is 15 years old and it's his first attempt. Planning to publish them in a book to boost his confidence. I don't want anything in detail, just something eyecatching and to add a flavour to his poetry. On the Instagram portal, I have seen some poetries which have a small picture next to them (line art drawing style). I was thinking something on similar lines. I don't want to spend too much money as I mentioned before it's his first attempt. Any guidance will be much appreciated.