i tried once to find paperbacks of my favourite books i have heard over the years, like louise penny or henning mankell series in thrift book stores mainly in D

i tried once to find paperbacks of my favourite books i have heard over the years, like louise penny or henning mankell series in thrift book stores mainly in Delhi (sunday market) but havent been there in a couple of years because of the pandemic but i would like cheap paperbacks on the shelves but not all the books i have heard over the years.