A comprehensive book covering Newtonian, Lagrangian, Hamiltonian, and Relativistic Mechanics is sought after, with recommendations including "Classical Mechanics" by Goldstein, which is rigorous but complex. "Classical Mechanics" by Taylor is noted for its simplicity and accessibility, making it suitable for those new to Lagrangian and Hamiltonian mechanics. "Marion and Thornton" is mentioned as an introductory text. Additionally, "Hand & Finch" is recommended, though it assumes a foundational understanding of Newtonian mechanics. Readers are encouraged to check reviews on platforms like Amazon for further insights.