So I am a massive fan of the Percy Jackson books which are written by Rick Riordan, having read each book a millionth time now.
Though my favourite book from the Percy Jackson and the Olympians series is Percy Jackson and the Titan's Curse, mainly because my favourite character Nico di Angelo was first introduced in this book. And from Heroes of Olympus series my favourite book will be House of Hades because it has some really cool Percabeth moments.
The non-PJ book series which is my favourite is The Kane Chronicles. Well it's actually in the same universe as the Percy Jackson books, the universe which we refer as the Riordan-Verse.
I have also read The Trials of Apollo, Magnus Chase and ofcourse the latest Percy Jackson and the Chalice of the Gods.
I am currently reading the Shadow and Bone trilogy books by Leigh Bardugo.
Well if you guys want to read Percy Jackson and the other Riordan-Verse books then you can download them from here.