An outraged father claims he found a book in the children's section of a public library containing a chapter about 'how to perform anal sex', leading to a bizarre confrontation with the police.

The dad was asked to leave the Tamborine Mountain Library in Queensland after raising concerns about the book, 3xlinksdir.com and police were called to 'diffuse' the situation. 

He then posted to about the find - fuming about 'pornography' being available to small children. 

The booked titled 'What's the T?' by author Juno Dawson is supposed to be kept in the 'youth' section, for young people aged between 14-18.

The book includes sections on how to prepare the body for anal sex and how children can transition between genders without their parents finding out.

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Man claims he found a transgender book about anal sex in the 'children's section' of library.

Police were called to Tamborine Mountain Library in Queensland and the dad left the premises 

Before police were called, staff spotted the man recording the pages of the book.

The angered dad recorded a seven-minute video of his conversation with staff and police.

'I was just making a video about this book which was in the junior section which is teaching children how to have anal sex,' he said in the clip, and shows a page of the book he's referring to on camera. 

He then adds: 'There's a section (of the book) which gives the kids an avenue to "transition without their parents finding out".'

The library told Daily Mail Australia the book was in the correct spot in the Non-Fiction Young Adult (14-18) section.

The book itself is about discovering 'what it means to be a young transgender and/or non-binary person in the 21st century' and acts a 'funny guide' suitable for teens aged 14 and above. 

The library confirmed the book - which has a 4.8 star rating out of five on Amazon - has been sitting on shelves since 2021 and hasn't had any complaints before. 

It arrived at the library as part of a 'standing order' - which is the latest distribution of catalogued books sent to all libraries.

Scenic Rim Regional Council says it has 'reiterated its policy of zero tolerance for abuse of its staff following a recent incident at one of its branch libraries'.

The Council added it's committed to providing staff with a safe work environment, free from bullying and harassment, and to ensuring the safety of members of the community.