Graph Laplacian Learning (GLL) Package v.1.0. This MATLAB package includes implementations of graph learning algorithms presented in [1]. [1] H. E. Egilmez, E. Pavez, and A. Ortega, "Graph learning from data under structural and Laplacian constraints," CoRR, vol. abs/1611.05181v2,2016. [Online]. Available: https://arxiv.org/abs/1611.05181 To install the package: (1) Download the source files. (2) Run script 'start_graph_learning.m' The demo script 'demo_animals.m' shows the usage of functions used to estimate three different types of graph Laplacian matrices discussed in [1]. Additional scripts and a more detailed description will be available soon.