Hello there!
I am currently tandem reading Empire of Storms and Tower of Dawn by Sarah J Maas. A tandem read involves reading both books at the same time. I am using the Telle Reads guide to follow which chapters to read while switching between them. Normally I am someone that likes to stick to the publication order and any flipping around the order makes me feel uncomfortable. For example, the Shadowhunter books. The correct way in my mind will always be The Mortal Instruments, Infernal Devices, The Dark Artifices, and then The Last Hours. It's a no to the idea of the chronological read for me.
However, I may call this a special case. The events of EOS and TOD are happening at the same time with our main characters in two different places. EOS focuses on Aelin, Rowan, Dorian, Manon, Elide, etc. While TOD focuses mainly on Chaol and Nesryn in the Southern isles. I was not sure how I felt about reading a whole book just about Chaol as he was not my absolute favourite character in previous books. I also struggled a lot reading Heir of Fire then Assassin's Blade then going back to Queen of Shadows because I didn't want an "in-between" book I just wanted to keep powering through with the story. (I did end up loving TAB so much - it was just the initial struggle of getting into a prequel story, while all my heart wanted was more Rowan). THEREFORE, my solution to avoiding the feeling of annoyance to read TOD while all I will probably want to do after EOS is read KOA, is the tandem read.
My update so far (I am about 100 pages into each). I AM LOVING IT. I do feel that the story is flowing really nicely despite all of the POVs. If you enjoyed Heir of Fire, which has a lot of switching POVs between a LOT of characters in different places. Then you may really enjoy doing the tandem read. My initial worries of not enjoying TOD have gone out the window, especially after meeting the lovely character Yrene. As I read if I feel that I am more on a roll with EOS then I think I will swap switching between the books and just finish EOS before continuing TOD and stopping the tandem read. I will keep you all updated!
Have you thought about doing a tandem read? What were your thoughts on the books?