A second-hand bookshop in Brisbane's West End is drawing worldwide attention with a blog showing objects left in books.

The blog Stuff Found in Books documents the things people use as bookmarks and then leave behind.

Owner Kat Mulheran collects the small pieces of history she finds within books she sells at her store Bent Books.

Among the discovered objects are postcards, tram tickets, a 21st invitation and newspaper clippings from days gone by.

Ms Mulheran says she's seen everything from letters to nude photos.

"I've seen a lot of glorious old letters, photos and the weird things things that people decide to use as bookmarks," she said.

"My favourite little treasures are bus tickets and tram tickets as they just don't make them like they used too.

"We have found nude photos too which we extract from the book just in case they fall into children's hands; we try and return them to the owners but sometimes we don't!"

Ms Mulheran has also found money buried within the pages of a book.

"I found $185 in a book, but because I didn't know where the book came from I couldn't return it."

Showing the world

The idea of creating a blog came about six months ago after Ms Mulheran purchased a local resident's private library.

"We were going through his books collecting things to give back to him from his library, but he didn't necessarily want them back.

"We asked him what to do with it all and he told us to start a Tumblr [blog]."

Ms Mulheran has worked in the store for over 13 years and says the interest in the blog has been overwhelming.

"People love it, we put it out there and people send us emails from all around the world," she said.

"I've got my little bag of things we've collected, sometimes things end up with the new owner of the book and who knows where it ends up next."