When I have a bit of time, I plan to give this a good look. If we were going to be sailing there this year or next, I'd definitely purchase a paper copy.
It includes information such as: Gibraltar and approach chartlets, Weather & Radio Forecasts, Tide Tables, Marina Info & Plans, General Guide to Gibraltar, Marine Services Guide to Gibraltar, etc.
It was so cool arriving in Gibraltar and seeing The Rock which was made famous to me by Walter Cronkite's show "The Twentieth Century".
We found some authentic English-style fish & chips there that was very good.