Please consider contributing your open source textbooks. This is an excellent way to share your material and make it widely accessible. All content will be posted with source files (.tex) to make it easy to reuse material in the way that you see fit. All content comes with a CC-By-SA 4.0 license.
Here are a list of our current textbooks.
Data Structures and Algorithms (Git, pdf) - Written by Leo Liberti
A Brief Introduction to Simulation (Git, pdf) - Written by Tamon Stephen and Timothy Yusun
Mathematical Programming and Operations Research: Models, Algorithms, and Complexity (working manuscript) (Git, pdf) - Written/Edited by Robert Hildebrand. Contributors: Laurent Porrier, Diego Moran
Here are links to some free manuscripts that are not presented on this organization.
Decision Modeling, David Tulett, (CC-BY-NC-ND), https://linney.mun.ca/pages/view.php?ref=36808
Practical Optimization: A gentle introduction, John Chinneck, https://www.optimization101.org/
Aspects of Convex Geometry Polyhedra, Linear Programming, Shellings, Voronoi Diagrams, Delaunay Triangulations, Jean Gallier & Jocelyn Quaintance Book in Progress (2017) https://www.cis.upenn.edu/~jean/gbooks/convexpoly.html
Network Optimization: Continuous and Discrete Models - Dimitri P. Bertsekas Massachusetts Institute of Technology http://web.mit.edu/dimitrib/www/netbook_Full_Book_NEW.pdf
Stochastic Optimal Control: The Discrete-Time Case - Bertsekas, Dimitir P.; Shreve, Steven https://dspace.mit.edu/handle/1721.1/4852
Data Networks (2nd Edition) by Dimitri P. Bertsekas and Robert G. Gallager http://web.mit.edu/dimitrib/www/datanets.html
Constrained Optimization and Lagrange Multiplier Methods - Dimitri P. Bertsekas http://web.mit.edu/dimitrib/www/lagr_mult.html
Parallel and Distributed Computation: Numerical Methods - Dimitri P. Bertsekas and John N. Tsitsiklis http://web.mit.edu/dimitrib/www/pdc.html
Foundations of Applied Mathematics - Jeffrey Humpherys and Tyler J. Jarvis https://github.com/Foundations-of-Applied-Mathematics/Labs
Bandit Algorithms - Tor Lattimore and Csaba Szepesvari https://tor-lattimore.com/downloads/book/book.pdf
Integer Programming
Michele Conforti, Gérard Cornuéjols, Giacomo Zambelli https://link.springer.com/book/10.1007%2F978-3-319-11008-0