diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
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--- /dev/null
+++ b/CONTRIBUTING.md
@@ -0,0 +1,35 @@
+# Contributing to Readr
+
+This is a guide on setting up and contributing to the project.
+
+## Getting started
+
+Install [Node.js](https://nodejs.org/en/download) and verify you have `npm` installed as well.
+
+Install [pnpm](https://pnpm.io/) if you haven't already.
+
+The easiest way to install pnpm is to use npm:
+
+```sh
+npx get-pnpm
+```
+
+To learn about other ways to install pnpm, see the [pnpm installation instructions](https://pnpm.io/installation).
+
+Next, install dependencies:
+
+```sh
+pnpm i # or: pnpm install
+```
+
+Run the application:
+
+```sh
+pnpm dev # or: pnpm run dev
+```
+
+In order to prepare a production-ready version of the app, run:
+
+```sh
+pnpm build # or: pnpm run build
+```
diff --git a/README.md b/README.md
index ac6da4b..161a9e1 100644
--- a/README.md
+++ b/README.md
@@ -1,40 +1,21 @@
 # IT2810 Gruppe 37: Readr (Prosjekt 2)
 
-Repository for team IT2810-H26-T37 in IT2810-H26.
-
-Visit our project here: [Readr](http://it2810-37.idi.ntnu.no/project2/)
-
-## Getting started
-
-Install [Node.js](https://nodejs.org/en/download) and verify you have `npm` installed as well.
-
-Install [pnpm](https://pnpm.io/) if you haven't already.
-
-The easiest way to install pnpm is to use npm:
-
-```sh
-npx get-pnpm
-```
+## Specification for first delivery
 
-To learn about other ways to install pnpm, see the [pnpm installation instructions](https://pnpm.io/installation).
+The specification for the first delivery is in [specifications.md](docs/specifications.md).
 
-Next, install dependencies:
+---
 
-```sh
-pnpm i # or: pnpm install
-```
+Repository for team IT2810-H26-T37 in IT2810-H26.
 
-Run the application:
+Visit our project here: [Readr](http://it2810-37.idi.ntnu.no/project2/)
 
-```sh
-pnpm dev # or: pnpm run dev
-```
+> [!NOTE]
+> The project is not deployed yet.
 
-In order to prepare a production-ready version of the app, run:
+## Contributing and getting started
 
-```sh
-pnpm build # or: pnpm run build
-```
+In order to get started with the project, check the [Contributing guidelines](./CONTRIBUTING.md).
 
 ## Testing
 
@@ -142,7 +123,7 @@ Furthermore, it ensures that we write clean and maintainable code that follows a
 
 ## Project choices and reasoning
 
-TBA
+This section will be expanded upon after the project has been developed more and choices have been made on the way.
 
 ## Use of AI in this project
 
diff --git a/docs/images/book-grid.png b/docs/images/book-grid.png
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diff --git a/docs/specifications.md b/docs/specifications.md
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+++ b/docs/specifications.md
@@ -0,0 +1,34 @@
+# Specification
+
+## Data
+
+- **Source:** Books from an open-source books dataset, possibly one from [Kaggle](https://kaggle.com).
+  We will import a selection of books into our own database, so that search,
+  filtering and sorting happens on our server. Cover images are still loaded
+  from the internet, because storing them would quickly fill the 10 GB of
+  storage on our VM. We only store each book's cover link or ID.
+- **Fields per book:** title, authors, first publish year, subjects, language,
+  cover ID, average rating, description and possibly more if the dataset includes it.
+
+## Design
+
+![Search page](./images/book-grid.png)
+![Sketches of homepage and login](./images/sketches.png)
+
+- The search page with the grid works well, so we only plan to polish it.
+- The book details page will be redesigned. Reviews will be shown and written
+  there.
+- We will add a separate page that lists the user's favorite books.
+
+## User interaction
+
+- **Search** on title and author. The search is case-insensitive and debounced,
+  so we don't send a request on every keystroke.
+- **Filter** on author, subject, place, person, publisher, language.
+- **Sort** by rating.
+- **Pagination** through the results, a **details page** for each book, and
+  previous/next buttons to browse between books.
+- **User-generated data**, stored in our database:
+  - **Favorites**, shown on their own page.
+  - **Reviews** with a star rating and an optional text.
+- **Login:** if time allows, we will add Google login.