There are some books that are one-time-onlies. There are some books that are re-reads. There are some books that are all-time classics. Then there are some books that are interlinked with one another. We call those books 'series'. Ever heard of it? This page is meant specifically to bring the attention to book series in which I thought were good or the "general public" thought was good. The series will be grouped by grade, just like the book reviews. If you have any ideas please email me. And since you can find my email on the 'About Me' page, I best leave it unsaid. Anyway, here are a few suggestions.
For 4th and 5th graders, the Percy Jacksom and the Olympians series by Rick Riordian is very good. It's about Percy Jackson, your average tween who learns he is a demigod and a son of one of the most powerful gods.
For 6th and 7th graders, the Kane Chronicles or the Heroes of Olympus series is good, also by Rick Riordian. They both have to do with being connected with the gods and juggling your life. They are both quite funny and enjoyable.