# Guano > Every day leaves a deposit. Notes from founders, investors and markets since 2022, layered and processed into insights that help things grow. Guano is an investor’s deposit of notes from founders, investors and markets, processed into insights. It is organized in layers, newest first: - [The Drop](https://tryguano.ai/drop/): weekly, one fresh insight and one chart from the deposit. - [Field Notes](https://tryguano.ai/field-notes/): short observations as they happen. - [Core Samples](https://tryguano.ai/core-samples/): deep dives that drill through years of layers on one topic. - [Fertilizer](https://tryguano.ai/fertilizer/): frameworks and tools for founders and investors. - The Deposit: the private archive the other layers grow from. Figures carry their sample size (n), nothing is published from fewer than five companies, and no company or founder is named. ## Core Samples - None published yet. ## Other - [Why Guano](https://tryguano.ai/why-guano/): the name, from Peru’s guano islands. - [For agents](https://tryguano.ai/agents/): how to read Guano programmatically.