Since the announcement of a special issue of Shock Waves in honor of Dr. Meng-Sing Liou, the outpouring of manuscripts from his collaborators, colleagues, and friends around the globe has been a fitting tribute to Dr. Liou for his outstanding lifelong achievements and contributions. We received 30 papers in total. The accepted papers are organized into two separate issues. The first issue mainly includes the manuscripts related to the AUSM-family schemes, which was Dr. Liou's crowning work that had the most profound impact. This second issue consists of papers from Meng-Sing's old friends and colleagues, which cover a wide range of topics: numerical methods, gas dynamics, combustion, turbulent flows, hypersonic flows, etc. We are delighted to present these manuscripts as a testimony to Dr. Liou's contributions and accomplishments in these research areas.All 30 submitted papers were subjected to the same rigorous peer review procedure as any regular contribution to Shock Waves. Each paper was reviewed by at least two or more international experts. As a result of peer review, 23 papers were accepted for publication, six papers were rejected, and one was withdrawn by the author. Out of the 23 accepted papers, 14 were accepted after one revision, six papers-after two revisions, and three papers-after three revisions. Ten accepted papers were published in the first issue (volume 29, issue 5), and the remaining 13 papers are included in the present second issue (volume 29, issue 8).Among the contributions of the second issue, we would like to bring our readers' attention to Eleuterio Toro's review paper on the HLLC scheme [1]. The HLLC scheme was originally published in Publisher's Note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
