Little Receipts — Standard First Three (Vols. 1–3, Standard Companion Edition, Interactive Editions)

All three member volumes, each the full Interactive Edition — complete text, recorded narration by Marcus, chronological timeline, and a 10-question educator quiz. 182.75 minutes of recorded narration by Marcus across the three standard volumes; 18 chapters. Every chapter closes with its sources and a method note. Big history. Little readers. All receipts.