The tcolorbox package manual, authored by Thomas F. Sturm, explores version 4.20 (2019/03/02) of the package, offering comprehensive guidance on creating colored and framed text boxes in LaTeX. From installation to advanced customization through option keys, this manual serves as an essential resource for both beginners and experienced LaTeX users. With a focus on practical applications such as example showcases and theorem settings, it also delves into macro usage and provides a quick reference guide for efficient navigation.

The UNIX System Administration Handbook, written by Tim O'Reilly and others, offers a comprehensive guide to managing UNIX and Linux systems in production environments. Covering essential topics such as basic administration, networking, and supplementary information, this book provides hands-on advice, pragmatic insights, and in-depth coverage of major variants. With a focus on practicality and real-world scenarios, it serves as a valuable resource for both novice and experienced system administrators, enriched by contributions from experts in the field.