This mini-book on Saltwater Fishing Bait is one of a series of three pocket guides published by the RYA - the other two being on Sea Fishing Knots and Sea Fishing Rigs.
The RYA Guide to Sea Fishing Baits will fit nicely into the pocket of your fishing jacket, and being spiral-bound and waterproof will come to no harm in your fishing bag or the cockpit of your boat.
In it, the author Jim O'Donnell explains by way of nicely drawn sketches and descriptive text, the way to mount the best baits on the hook so they look natural and don't fall off - see below.
Each description is accompanied by Jim's advice as to where you can find them, and the fish you're likely catch on them.
Downrigger ~ The cranelike device incorporating a line-counter reel often seen on the sterns of sport-fishing boats, which lowers a trolling weight on a wire line to a pre-determined depth. The trolling line is attached just above the weight, which gets the lure down to depths that would otherwise be unachievable.