# Books, an immutable double-entry accounting database service

DevFeed: [Books, an immutable double-entry accounting database service](<https://devfeed.tech/articles/books-an-immutable-double-entry-accounting-database-service-15549.md>)

Original publisher: [Read original article](<https://developer.squareup.com/blog/books-an-immutable-double-entry-accounting-database-service>)

Author: Łukasz Strzałkowski

Published: 2019-10-16T07:00:00Z

Content type: article

Language: en

Sources: [Square Corner Blog RSS Feed](<https://devfeed.tech/sources/square-corner-blog-rss-feed.md>)

Topics: [Database](<https://devfeed.tech/topics/database.md>), [Transactions](<https://devfeed.tech/topics/transactions.md>), [Google Cloud Platform (GCP)](<https://devfeed.tech/topics/google-cloud.md>), [Kubernetes](<https://devfeed.tech/topics/kubernetes.md>), [Google](<https://devfeed.tech/topics/google.md>)

Tags: [database](<https://devfeed.tech/tags/database.md>), [engineering](<https://devfeed.tech/tags/engineering.md>), [financial](<https://devfeed.tech/tags/financial.md>), [google](<https://devfeed.tech/tags/google.md>), [google-cloud](<https://devfeed.tech/tags/google-cloud.md>), [infrastructure](<https://devfeed.tech/tags/infrastructure.md>), [kubernetes](<https://devfeed.tech/tags/kubernetes.md>), [payments](<https://devfeed.tech/tags/payments.md>), [scale](<https://devfeed.tech/tags/scale.md>), [transactions](<https://devfeed.tech/tags/transactions.md>)

## AI overview

Square built Books, an immutable double-entry accounting database service, to provide consistent and scalable infrastructure for tracking financial transactions across its products. Books uses Google Cloud Spanner and Google Kubernetes Engine.

## Source excerpt

Tracking financial transactions at scale