The Dragonlance series are one of the most famous and consist of several books not always related to one another but sharing the same world and background.
If you never read anything in this series the first three books to start are the Dragonlance Chronicles.
1 – Dragons of Autumn Twilight
2 – Dragons of Winter Night
3 – Dragons of Spring Dawning.
Don’t start reading other books first because you need the background on this story and other books can be spoilers with the content in this ones.
After you read those (and i can assure you will enjoy them, or at least hope you do as much as i did) there is another trilogy completely mandatory and even best. The Legends Trilogy
1 – Time of the Twins
2 – War of the Twins
3 – Test of the Twins
There are a lot more books in the serie but this are the “Holy six”. After this you can read almost any other Dragonlance book.