He's also revealed he's in the preliminary research stage into the Bathurst War, the subject of his next book.

During his talk, Dr Gapps will outline the research he's conducted for his next book and while he believes he still has several more years of research to complete before his work is publishable, he's already made significant inroads.

"There's been a lack of detailed historical analysis of the conflicts around Bathurst, with no recent works," he said.

"There was some older works done in the 1960s and 1970s by local historians, but since then historical investigations have changed, with archives more available.

"I researched the Sydney Wars because it hadn't been revisited by historians, so that's what I'm doing with the Bathurst War."

Dr Gapps has already made investigations into state archives and front what he has discovered, he believes there was more conflict during the Bathurst War than what historians have previously written about.

"We think of the Bathurst War as the periods of martial law that was declared in Bathurst in 1824," he said.

"In fact the conflict was going from 1822 right up until 1824.

"The extent of conflict and warfare was greater than what I initially thought."

He also said the war was not just confined to Bathurst put across the Central West.

"From Wiradyuri people down south to Oberon, as far past Mudgee and into the upper Hunter Valley, there were reports of the Wiradyuri in conflict with the Europeans," he said.

"Once the real warfare started, Windradyne's warriors were quite active, roaming across a large area."

Dr Gapps said he would like but is hoping to meet with the Bathurst Indigenous community in 2019, looking at the stories they have to tell.

Bookings are essential for Tuesday night's talk.

To book, call the library on 6333 6281, enquire at the front desk or register at eventbrite.com.au.

The talk will start at 6.15pm.