A person who collects books - is a Bibliophile.
A person who collects beetles is a coleopterist.
: It is called a bibliophile; one who collects book. Bibliophilia is a love of books.
A person who collects dolls is called a doll-collector. :)
A person who collects nests or eggs and studies them is called an oologist.
you call them a hobbiholic
A "special" person
The person who collects money for your company is called the financial director.
A bibliophile is a person who loves or collects books.
A person who collects and studies butterflies is called a lepidopterist. The same term is also applied to someone who collects and studies moths.