In the UK these are commonly set up inside old unused telephone boxes - you can find them in many villages/towns, e.g.: https://nothingintherulebook.com/2018/11

In the UK these are commonly set up inside old unused telephone boxes - you can find them in many villages/towns, e.g.: https://nothingintherulebook.com/2018/11/03/british-phone-box-libraries/ https://nothingintherulebook.com/2018/11/03/british-phone-bo...