diff --git a/books.md b/books.md
index a9b9eb4..cab2362 100644
--- a/books.md
+++ b/books.md
@@ -65,7 +65,8 @@ The following is a list of free and/or open source books on machine learning, st
 - [Managing Machine Learning Projects: From design to deployment](https://www.manning.com/books/managing-machine-learning-projects) - Simon Thompson
 - [Causal Machine Learning](https://www.manning.com/books/causal-machine-learning) - Robert Ness - Practical introduction to building AI models that can reason about causality.
 - [Bayesian Optimization in Action](https://www.manning.com/books/bayesian-optimization-in-action) - Quan Nguyen - Book about building Bayesian optimization systems from the ground up.
-- - [Machine Learning Algorithms in Depth](https://www.manning.com/books/machine-learning-algorithms-in-depth)) - Vadim Smolyakov - Book about practical implementations of dozens of ML algorithms.
+- [Machine Learning Algorithms in Depth](https://www.manning.com/books/machine-learning-algorithms-in-depth)) - Vadim Smolyakov - Book about practical implementations of dozens of ML algorithms.
+- [Optimization Algorithms](https://www.manning.com/books/optimization-algorithms) - Alaa Khamis - Book about how to solve design, planning, and control problems using modern machine learning and AI techniques.
 
 
 ## Deep Learning
diff --git a/courses.md b/courses.md
index 293c63f..b02898b 100644
--- a/courses.md
+++ b/courses.md
@@ -54,3 +54,11 @@ The following is a list of free or paid online courses on machine learning, stat
 * [Complete Data Science and ML Course](https://www.scaler.com/data-science-course/) - $
 * [ML Observability Fundamentals](https://arize.com/ml-observability-fundamentals/) - free
 * [Introduction to Data-Centric AI (MIT)](https://dcai.csail.mit.edu/) - free
+* [Data science course with placement](https://brainalyst.in/data-science-course-placement-guarantee)
+* [DATA VISUALIZATION COURSE](https://brainalyst.in/data-visualization-courses-online/)
+* [DATA VISUALIZATION PYTHON COURSE](https://brainalyst.in/data-visualization-python/)
+* [DATA SCIENCE WITH R PROGRAMMING](https://brainalyst.in/data-science-with-r/)
+* [DATA SCIENCE WITH PYTHON](https://brainalyst.in/data-science-with-python-course/)
+* [DATA SCIENCE 360 TRAINING COURSE](https://brainalyst.in/data-science-360-training-course/)
+* [BIG DATA & CLOUD COMPUTING COURSE](https://brainalyst.in/big-data-cloud-computing-courses/)
+* [FULL STACK DATA SCIENCE PROGRAM](https://brainalyst.in/full-stack-data-science-course-program/)