Book Compass Statistics

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How the collection distributes across cognitive complexity levels. The shape here reflects curatorial choices as much as anything: where the interesting books cluster, and which age ranges still have thin coverage.

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Average recommended complexity age plotted over publication years, showing whether books from different eras are calibrated differently.

The full collection by genre, proportioned by count. The shape is an honest record of where this particular curator's interests are concentrated.

How often genres travel together within individual books. Thick connections mean those genres are regularly paired; hover a segment to isolate one genre's relationships.

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Book count by genre category, ranked. A flatter view of the same data as the treemap.

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Some genres (science fiction, literary fiction) have books spanning the full age range. Others cluster at one end. This shows which genres scale with a reader's development and which don't.

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Publication spread across decades, coloured by genre. Shows which eras are heavily represented and how genre composition has shifted over time.

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Whether older or newer books are being pitched at older or younger readers. There's no strong trend, which is itself informative: complexity doesn't correlate with modernity.

Decade-by-decade breakdown of which complexity age groups are represented, showing how the collection's age spread has shifted across publication eras.

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The authors most represented in the collection. Multiple entries from the same author is a considered choice, not an accident of data import.

How much of the collection commits you to a longer reading journey versus letting you put it down and move on. The split might be surprising.

Select an author to see their full output within the collection plotted across their career. Useful for seeing when an author found their stride, and whether their best work came early or late.

Common words across all book titles, sized by frequency. Click any word to filter the main collection. The dominant words reveal something about what children's literature thinks matters: darkness, worlds, last things.

A radar view of how demanding each genre is, measured by the average complexity age of its books. Literary fiction and speculative subgenres set the highest bar; children's classics, consistently the lowest.

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Each bubble is a genre: horizontal position is average complexity, vertical is book count, bubble size is the spread within that genre. A large bubble stretched across the x-axis means the genre spans all ages. A small tight bubble means it consistently targets one level.

How each genre's complexity age spread actually looks. A narrow peak means books in that genre cluster at one complexity level; a flat wide spread means they range across the full progression.

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Which genres are present at each age level and how the genre composition changes as readers move through the progression.

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How the collection breaks down across the three rating tiers: Good (worth reading, earns its place), Great (clearly recommended), Must-Read (would push into someone's hands regardless of genre preference).

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Rating distribution broken down by complexity age group, showing how the proportion of each tier varies across the progression.

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Percentage of books at each age level that earned a Must-Read rating. Shows which points in the reading progression have the highest concentration of standout books.