BBC's 11 Greatest Children's Books

http://www.bbc.com/culture/story/20150402-the-11-greatest-childrens-books

I also recommend:

All Beverly Cleary books

All Magic School Bus books

All of the Newbury Award/Honor books

All Frog and Toad books

All Amelia Bedelia books

All Shel Silversteine's children's poetry books

For Boys:

There are junior comic books, Highlights magazine, and boys' literary magazine subscriptions, available at Amazon.com's website also. Libraries often hold books, magazines sales events.

At Barnes and Nobles, there's an excellent selection of board games, Summer Bridge, and grade-level Spectrum workbooks.

I love the Science, Arts kits at Guiry's Art Supplies in Highlands Ranch, Colorado and Joanne Fabrics for primary grade children. Their educational visual charts and diagrams, along with rewards charts are excellent at Joanne Fabrics.