Rod, reel, line, hooks and sinkers: what to get first, how much of it, and what you can skip.
Walk into a tackle shop and the hundreds of items make it hard to know where to start. Reverse the order and it gets easy. Decide where you will fish and for what, and the rod length, line thickness and hook size follow. Casting a short distance from a breakwater, casting far from a sandy beach, and float fishing in a reservoir each need different gear. Start with one style and widen out once you are comfortable; it saves both money and trial and error.
Rods are classed by length and strength. A long rod casts further and clears obstacles at your feet more easily, but it is heavier and harder to handle. A short rod is light and accurate but casts less far. For a beginner, one general-purpose rod of moderate length is the safe start. Rods are marked with a suitable range of line thickness and sinker weight; matching your rig to that range is the basic rule. Casting a sinker heavier than the range hard can snap the rod. If you move around a lot, a rod that collapses into fewer sections is easier to carry.
Reels come in two main types, spinning and baitcasting. A spinning reel is the one to start with: it tangles less and casts light rigs easily. Reel size determines how much line, and how thick, it holds, so match it to the rod. When spooling, the usual guide is to fill to just below the rim of the spool, neither overfull nor short. Too much line spills off in loops when you cast and tangles; too little shortens your casts.
Main line behaves differently by material. Nylon stretches, absorbs shock and is easy to handle, which makes it the common beginner choice. Fluorocarbon is less visible underwater and resists abrasion, so it is often used for leaders. Braided line is thin, strong and sensitive, but knots slip more easily and tangles are hard to undo. A simple setup of nylon main line with a nylon or fluorocarbon leader is a sensible start. For small tackle, this is enough.
Bait is either live or artificial. Live bait such as marine worms or shrimp draws fish by scent and movement, so even beginners get bites. It spoils quickly, though, so keep it cool and out of the sun, and never dump leftovers at the water's edge. Artificial lures are easy to store and keep your hands cleaner, but they need technique to give them lifelike movement, so you may get fewer bites at first. The tackle shop is the most accurate source for what works on your target in that area.
Gear that protects you matters as much as gear that catches fish. A life jacket is the first thing to pack, wherever you go. Pliers or a hook remover keep your hands safe, and a landing net stops the line from snapping when you lift a big fish. If you plan to eat your catch, you need a cooler with ice. Non-slip shoes, a hat, polarized glasses and gloves help too. Polarized glasses cut surface glare so you can see your line, and they protect your eyes from a stray hook.
At the beginner stage you mostly do not need a premium reel, several species-specific rods or a set of lures in every color. What you need becomes obvious after a few trips. For the first two or three outings, a starter kit, rental gear, or the rental rods at a managed pond are all reasonable. In the meantime you will find out whether you prefer the sea or fresh water, and whether watching a float or casting and retrieving suits you better.
Common mistakes are using a rig outside the rod's marked range, overfilling the reel, and fishing with old line. Line weakens with sunlight and wear, so cut off any section that looks chalky or rough, and replace it regularly if you fish often. After each trip, wipe the rod and reel dry; if you fished in salt water, rinse them lightly in fresh water and dry them in the shade. Rusty hooks do not penetrate well, so never put them back in the box wet.