We are proud to announce that the chapter “Exploration of Protein Posttranslational Modification Landscape and Cross Talk with CrossTalkMapper” has been published within the “Computational Methods for Predicting Post-Translational Modification Sites”. It is a tutorial on how to use the tool PTM-CrossTalkMapper – a tool developed to analyze quantitative data of dynamic co-occuring post-translational modifications (PTMs). Access to the book chapter is available here: https://link.springer.com/protocol/10.1007/978-1-0716-2317-6_13