If You Liked .... You May Also Like ....

[Steph, Serious series addict]

If you liked [this series], you may also like [this series].
Please include the first book in the series, along with the author's name

I'm sure all of us have been asked for a similar series recommendation at one time or another. If you know of some that are similar and you'd like to share, please do so here.

I'd love it if you'd also include what characteristics you think the two(+) series share. EXAMPLE: story complexity, world-building, type of supe, etc. That would help me a bit as well.