Daily Teaser Videos

A new teaser video every day, one per book in the catalog. Subscribe on YouTube.

• Pet Friendly — responsible, modern pet care | HDL Group2026-08-25
• YouTube Algorithms — growing a channel with the algorithm | HDL Group2026-08-24
• Art of Joy — the science of happiness | HDL Group2026-08-23
• Bitcoin Standard — Bitcoin & digital finance | HDL Group2026-08-21
• Science of Feeling Great — wellness & vitality | HDL Group2026-08-15

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