[Glossary](/glossary.md)/[Progression](/glossary/category/progression.md)

# Crew book

An item that grants a lump of crew experience, the fastest way to bring a crew up to its next skill.

Also known as crew books, personal reserves book.

Crew books come in national and universal forms and are earned from missions, [campaigns](/glossary/personal-missions.md) and the [battle pass](/glossary/battle-pass.md). Using one adds [experience](/glossary/experience.md) directly to a crew, which is worth several hundred [battles](/glossary/battles.md) of training on a fresh vehicle.

They are the practical answer to the stock-and-untrained-crew stretch that makes a new [Tier](/glossary/tier.md) X miserable.

## Related terms

[Crew trainingA crew member's proficiency in their main role, as a percentage, which scales every stat that role governs.](/glossary/crew-training.md)[Crew skillAn ability trained past 100 percent proficiency, which either improves gradually as it is learned or activates all at once when complete.](/glossary/crew-skill.md)[ExperienceThe currency earned per battle from damage, spotting, kills, capture and defence, spent on research and crew training.](/glossary/experience.md)[Battle PassA season-long track of rewards unlocked by earning points on a chosen set of vehicles.](/glossary/battle-pass.md)

[Every World of Tanks term](/glossary.md)

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