Wheel of Time is a series written by Robert Jordan. The books are large - 900, 1000 pages each. It started off very good but kinda lost its way. Jordan passed away before he could finish it and Sanderson was chosen to finish it.
If you’re looking for good stuff, check out Sanderson’s “The Stormlight Archive”, his best series (imo). Mistborn (Final Empire, Well of Ascension, Hero of Ages), Elantris, Warbreaker and The Emperor’s Soul are also all really enjoyable.
I’ve read sci-fi, fantasy for 30+ years and haven’t found anyone else like Sanderson. He is a prolific writer with great stories, great characters and great worlds.
Is this Science fiction or Fantasy? As I said above, I'm not really into the fantasy but love Sify.