[jesselt]

In the case of names it can be hard to know how to read certain ones. Names are different from words in that with just a normal word written in Kanji you will usually be able to tell how to read it from experience. Names can sometimes be read different ways however, but there is often only one or two common readings.

Learning how to read names in Kanji is significantly more difficult for foreign speakers of Japanese because they do not grow up seeing these names frequently. All Japanese textbooks I've seen make no effort to help this problem and just use the most basic names (田中さん、上田さん、etc.) over and over rather than introducing new names.

A native speaker might be able to elaborate more on how easy/difficult it is to read uncommon names.