Tutorial Guide to X-ray and Gamma-ray Astronomy: Data Reduction and Analysis

Regular Black Holes: Towards a New Paradigm of Gravitational Collapse

Recent Progress on Gravity Tests: Challenges and Future Perspectives

Handbook of X-ray and Gamma-ray Astrophysics

High-Resolution X-ray Spectroscopy: Instrumentation, Data Analysis, and Science

Handbook of Gravitational Wave Astronomy

Handbook of Quantum Gravity

New Frontiers in GRMHD Simulations