This summer enjoy a good novel.
Read literature and be changed by epiphany, irony, perspective, life and its discoveries.
Read how others see and how they take in the world around them.
Here are some authors that are lovely:
James Baldwin - Giovanni's Room
Ruth Prawer Jabwala - Any of her books
Leo Tostoy - Anna Karenina
Vladamir Nabokov - Short Stories
Juno Diaz - The Brief and Wonderous Life
of Oscar Wao.
There are so many wonderful writers any novel of your choice will do.
These are just suggestions to get you started.
Enjoy the contemplation of life through literature and hopefully once in awhile a lovely hammock as well!