GardenDen Guides are short paid PDFs on one practical topic. They go a step further than a single article, with a simple plan, checklists, and a source list. The free articles on this site stay free.
The first guide is for growing salad greens and kitchen herbs in pots on a balcony or patio, without a yard.

Balcony Salad Pots
A simple plan for lettuce, herbs, and leafy greens on a balcony or patio
A 23-page PDF that walks you through checking your sun, picking pots that drain, using potting mix, planting a short list of greens and herbs, watering by checking the mix, harvesting so the plants keep growing, and reseeding when a pot fades.
Buy the guide on GumroadThis is general gardening information. Check your building rules before you load a balcony with heavy pots. A large pot of moist mix can weigh about 100 pounds.