Back in the day I remember learning about TCP and other systems subjects through Beej Guides! [1]. Is there other material recommended to review network program

Back in the day I remember learning about TCP and other systems subjects through Beej Guides! [1]. Is there other material recommended to review network programming? I know about the Stevens' books but they look so bulky and dry... 1: https://beej.us/guide/ https://beej.us/guide/