diff --git a/docs/new_library.md b/docs/new_library.md
index ae9635656..e1070bc5e 100644
--- a/docs/new_library.md
+++ b/docs/new_library.md
@@ -40,7 +40,7 @@ This is the Docker image definition that build.sh will be executed in.
 It is very simple for most libraries:
 ```bash
 FROM ossfuzz/base-libfuzzer             # base image with clang toolchain
-MAINTAINER YOUR_EMAL                    # each file should have a maintainer 
+MAINTAINER YOUR_EMAIL                   # each file should have a maintainer 
 RUN apt-get install -y ...              # install required packages to build a project
 CMD /src/oss-fuzz/LIB_NAME/build.sh     # specify build script for the project.
 ```
@@ -183,6 +183,16 @@ $ python scripts/helper.py run_fuzzer $LIB_NAME name_of_a_fuzzer
 If everything works locally, then it should also work on our automated builders
 and ClusterFuzz.
 
+### Debugging build scripts
+
+While developing your build script, it may be useful to run bash within the
+container:
+
+```bash
+$ python scripts/helper.py shell $LIB_NAME  # runs /bin/bash within container
+$ bash /src/oss-fuzz/$LIB_NAME/build.sh     # to run the build script manually
+```
+
 ## Checking in to oss-fuzz repository
 
 Fork oss-fuzz, commit and push to the fork, and then create a pull request with