diff --git a/src/NexusReader.Application/Abstractions/Services/IEpubMetadataExtractor.cs b/src/NexusReader.Application/Abstractions/Services/IEpubMetadataExtractor.cs
new file mode 100644
index 0000000..8a749a9
--- /dev/null
+++ b/src/NexusReader.Application/Abstractions/Services/IEpubMetadataExtractor.cs
@@ -0,0 +1,9 @@
+using FluentResults;
+using NexusReader.Application.Queries.Reader;
+
+namespace NexusReader.Application.Abstractions.Services;
+
+public interface IEpubMetadataExtractor
+{
+    Task<Result<LocalEpubMetadata>> ExtractMetadataAsync(Stream epubStream);
+}