Most shelving advice starts with the books. It is far more useful to start with you: the chair you actually sit in, the lamp you actually switch on, the cup of tea you actually balance on the arm. A reading nook works when the books serve the sitting, not the other way round.
So before you move a single spine, spend an evening in the spot. Notice where your eye lands when you look up from a page. Notice which shelf you can reach without standing. Notice whether the fire throws too much warmth on one side or a draught creeps under the door on the other. That reconnaissance tells you more about how to organise your books than any system borrowed from a magazine.
Once you know that, the arrangement becomes simple: the books you want most should sit where you look and reach most easily, and everything else can fall into place behind them.
Mood sorting is the most restful method for a reading space, because it matches the book to the moment rather than to the alphabet. Instead of fiction here and non-fiction there, group by how a book makes you feel.
Put the mood you want most on the shelf at eye level when you are seated. A mood shelf is also forgiving: it never needs re-alphabetising, and it naturally rotates as your tastes shift through the year.
Size sorting is the practical option, and it looks calmer than it sounds. Measure your shelf spacing first — most paperbacks need around 20cm of height, standard hardbacks nearer 24cm. If your shelves are fixed, keep the tall books at the ends of a run so you are not shifting an entire row to slot one in.
A few rules that save real effort:
If your shelves sit in your line of sight from the chair, colour sorting creates a soft gradient that genuinely settles a room. Work warm to cool, or light to dark, and let the eye travel along the shelf without interruption.
The honest caveat: colour sorting makes finding a specific book harder. The workaround is a hybrid. Keep series and reference books together in their own section, and colour-sort only the open shelf you look at most. Place warmer tones — rust, ochre, deep red — near the lamp, where the light flatters them, and cooler blues and greys further out.
One warning: do not let the sorting become the hobby. If a colour arrangement leaves you hunting for a novel for ten minutes, it is not serving a restful space. Rearrange, and get back to reading.
The single most useful change you can make is a small landing place beside your chair. Not a shelf — a tray, a shallow basket or a side table, holding no more than three to five books at a time.
Clear this pile at the end of each month. Anything unread for three weeks goes back to the shelves without guilt; it was the wrong season for it, not the wrong book.
A hearth is lovely and hard on books. Direct heat dries paper until it brittles, curls covers and loosens glue in the spine. Keep shelving at least a metre from a working stove or open fire, and never stack books on a mantel above a lit fire — heat rises straight into them. A fireguard helps, but distance helps more.
Watch for damp on cold external walls, where books develop a musty smell and wavy pages. A small gap behind the bookcase, or a backing board, gives some protection. Strong sunlight fades spines, so angle tall shelves away from a south-facing window, and choose a warm, low lamp rather than a bright overhead.
Finally, refresh the nook with the seasons. Swap five or ten books each change of season — heavier volumes for autumn and winter, lighter reads for spring — and dust shelves with a dry cloth rather than a damp one. A small, well-tended arrangement near a warm fire, with your current read to hand, is all a restful reading space really needs.