Terry Brooks' Shannara high fantasy series began in 1997 with The Sword of Shannara. Dozens of novels and 40-plus years later, it concluded with The Last Druid in 2020. If you've never tried Brooks' classic series, now's a great time to dive in. Humble Bundle's Shannara series deal includes up to 20 books for only $18. It doesn't come with every book in the series, but less than one dollar per book is quite the bargain.

If you prefer physical books, you can get a hardcover edition of The Sword of Shannara Trilogy for $22 (was $40) at Amazon. This hardcover edition was released back in 2002 to celebrate the 25th anniversary of the series--it's rather cool to see it still in print today. Keep in mind the original trilogy is also available in digital format for only $1 at Humble.