Help LN readers (No Spoiler)

To be honest, you'll need to read the entire light novel to really get it all. The anime is great, but it cuts material out of every episode. Just the nature of most LN adaptations.

from what i remember the most they cut off was some interesting details and stuff that happened during the Begaritt continent expedition (volume 11)

otherwise the adaptation is very fateful to the original material. I do however suggest that you read all the LN's since they are amazing but obv it's preference.

I recommend you to check out chERISma on YT as he makes videos on MT comparing the anime to the LN and explaining the few missing details.

Read from the beginning! it's worth it between the seasons

I think you should watch anime first and if you like it then read the novels. It takes a long time to read so if you don't enjoy the anime save your time. The novels are really good so i would suggest you to read them as a lot of content is missing in anime. Also anime is not finished.

@johneaston
Can I watch the anime as the first experience?
I love watching anime and prefer it to reading LN
but I heard they treated Roxy badly, are there more like that? and where?
And Thanks very much

@Ali-Deeb The anime is an excellent first experience. People have criticisms of it, and some of them are true, but it is overall an excellent adaptation.

As someone who just finished volume 12, just read the whole thing from start to where the anime ends

Season one is a good adaptation. It has stunning animation and while it does cut content, it still manages to do justice to all the important stuff from books 1-6. Also, the last episode is mostly original and it's really good.

Unfortunately the same can't be said for season two: animation is significantly downgraded and it starts going way too far with the cuts, especially the second part that cut almost the entire second half of volume 11, as well as some of the most important dialogues in the whole series which resulted in episode 23 being much more controversial than it should've been.

With this said, if you prefer watching anime than reading, I'd say watch the first season and get a good feel of the series. Then, if you like it as much as I do and want the true experience, read the novel series from the start.

There is a youtube series which details all the cut content from the anime. Just search 'Mushoku Tensei cut content' and you should be good.

There's plenty of cut content in S2 but the main one happens in the penultimate episode so I'd recomend reading the Web Novel(which is free) Volume 13 chapter 10 before watching the last episode. It's volume 12 of the Light Novel if ur interested in having the phisical book.