Is there any post explaining difference between indirect object pronouns and possessive pronouns?

Indirect object pronouns have really nothing in common with possessive pronouns. The former stand in for any kind of indirect object, whereas the latter denote to whom something belongs. 

Indirect object pronouns:

1st person sing.: je --> me
2nd person sing.: tu --> te
3rd person sing.: il/elle --> lui

1st person plural: nous --> nous
2nd person plural: vous --> vous
3rd person plural: ils/elles --> leur

Examples:
Je parle à Adam. --> Je lui parle.
Je parle à Marie. --> Je lui parle.
Je parle à Adam et Marie. --> Je leur parle.

Posessive pronouns (masculine noun/feminine noun/plural noun):

1st person sing.: mon/ma/mes
2nd person sing.: ton/ta/tes
3rd person sing.: son/sa/ses

1st person plural: nous --> notre/notre/nos
2nd person plural: vous --> votre/votre/vos
3rd person plural: ils/elles --> leur/leur/leurs

Examples:
Ce sont mes livres. (1st person singular and plural noun)
C'est mon livre. (1^st person singular and masculine noun)
C'est votre livre. (2nd person plural and masculine noun)
Ce sont vos livres. (2nd person plural and plural noun)
Ce sont leurs livres. (3rd person plural and plural noun)
Elle est ma copine. (3rd person singular and feminine noun)

In the above answer, possessive adjectives and pronouns have been conflated into the one post as if they were the same. 

They are not - the references Cécile added are useful for a first port of call.

These pronouns are confusing because the selfsame word can have more than one function and meaning (which you can deduce from the position of the word in the phrase).

e.g. Leur can be either a possessive pronoun for several people of either sex owning one thing (leur chien) or an indirect object pronoun for more than one person of either sex (je leur parle)

Lui is the indirect object pronoun for "to him" or "to her" (je lui parle) but is also used as the stress pronoun for a male (chez lui, the female version is chez elle).

The only way I managed to remember it was to write out and learn four lists: direct object and indirect object personal pronouns, stress (tonic) pronouns and possessive pronouns, and invent short phrases to fix them in the memory.