The My Hero Academia wikia list 2 sources for characters power levels/skills, the Ultra Archive and the Ultra Analysis. They have different figures for the same skills of the same characters. Why are there 2 sources for power levels/skills in My Hero Academia, the Ultra Archive, and the Ultra Analysis? Is one of them more canon or official than the other?
The books you are referring to are both official character books. My Hero Academia Official Character Book Ultra Archive is the first book and was released back in 2016. My Hero Academia Official Character Book 2 Ultra Analysis is the second book released this year in 2019.
I would say there are two books to update the information we have on new heroes, villains and/or characters. Looking at their wiki pages, (Ultra Archive, Ultra Analysis) one can see that the second book has new heroes/villains that were not present in the first character guide book.