I'm sure like me you have numerous reference books in your library. I don't like to take them with me on every occasion chiefly because of weight! However my memory is not as good as when I was 20 and have started collecting relevant bits and pieces and copying and then laminating for reference in the woods. I also take Field Study Council sheets and the odd Observer book. For example I have copied for my latitude the monthly star charts and take the appropriate ones.
Does anyone else do this and if so what reference material do you take?
Does anyone else do this and if so what reference material do you take?