You don't mention which language you're interested in, but if you use Go, check out my guide on Go Data Structures https://flaviocopes.com/golang-data-structure

You don't mention which language you're interested in, but if you use Go, check out my guide on Go Data Structures https://flaviocopes.com/golang-data-structures/ https://flaviocopes.com/golang-data-structures/ Even if you're not into Go at all, I think the language is nice to beginners and the examples can be easily read. I hope you'll find it useful, it focuses more on the implementation than on the theory but it could be reference material along with more in-depth books.