Book Trend Tracker

How strongly a book is trending right now. Combines data from all sources that found it, weighted by source reliability. A book at 85 is trending more strongly than one at 40. Scores are relative — they compare books against each other, not against an absolute scale.

NEW = first time we've seen this book (no history to compare yet). After a few daily collections, this shows whether the book is gaining steam or fading. Compares the last 3 days against the prior week.

Each colored dot represents a data source. Filled = that source found this book. More lit-up dots = the book is showing up across multiple independent channels, which is a stronger signal than appearing in just one.

Breadth = bonus for appearing in multiple sources (1.0x = one source, 1.5x = all sources). Recency = how fresh the data is (1.0 = just collected, fades over days). Momentum = rate of change vs. last week. These three modify the base score to produce the final composite.