This is a decent overview of Sino-Russian relations mostly post-90s, from the 2000s to just before the current time, around 2017. There's also a significant overview of Sino-Soviet relations, and the dynamics of that relationships, and how/why it differed with the current inter-state compact that has formed between the two states.
At the heart of this book is the question, what is the nature of the relationship, why is it robust, and what prospects are there for it to persist, evolve into the future? For those who have been avid watchers of either country for the past 1 - 2 decades, nothing in this book will be very surprising. Starting with Yeltsin & Jiang Zeming, but accelerating under Putin and the same, then Hu Jinato, and currently with Xi Jingping, there have been an increasing number of "confidence" measures, which includes not only increased trade between raw and finished goods (mostly military hardware for the first 1 - 2 decades) between the two nations, but since the 2010s, more effort has been directed (mostly from the top) to integrate critical infrastructure, both physical (commodity pipelines etc.), as well as intellectual (R&D, inter-university curricula integration etc.).
It has been assumed, almost without challenge, in Western policy circles that the relationship is 'marriage of convenience', and that the nature of autocracy prohibit a deep relationship to form/persist between the two states for very long. Several theoretical models including, those that are a function of either geography or "institutional" theories of governance suggest this may be the case. However, the author, who is an academic from Russia, claims that this notion is wide off the mark.
His primary thesis is that the relationship between China and Russia has evolved to become multi-layered and extend beyond the principal and policy levels, to include so many interweaving connections, that no one leader on either side could change the nature of it too drastically. I have my reservations on that analysis, as the author makes a similar remark on the nature of the Sino-US relationship when commenting on the likely evolution of the Trump era, whereby he states that whatever the desires of Trump and his clique to disentangle the economic relationship, not much could be done to really diminish it. This is being shown not to be the case at least currently (circa July 2020) at least in the dimension of technology trade between the two nations, and that will have an increasingly coercive effect on the rest of the trade relationship as technology becomes and increasing part of the overall portfolio of each country's economy.
However, this sort of structural argument is not unique to the author, and almost all political scientist overestimate the strength/robustness of institutions/inter-personal relationships with respect to political change in their analysis/theories. Yet, the author does make a convincing case that the relationship will be persist, and that it's too much in both the Russian and Chinese interest to ensure that it remains at the very least amiable. This seems likely, as growth in China, and the Asia-Pacific more broadly, continues to outpace most other regions, and as China in particular, continues to expand infrastructure in scientific and engineering research.
The author paints a picture of a Russia that plays "balancer" in some way between the various potential hegemons of "Eurasia", including between India and China. Though, keeping China as the premiere partner for coordination. Overall it's not a bad book, it's just not very "new" with respect to the kind of reports/analysis one may have gleaned from the pages of Foreign Affairs on the western side, or something like AsiaTimes or any number of open-source journalistic material. However, he is fairly exhaustive, assessing the relationship within all the critical dimensions, including social (people-to-people), institutional, economics, political, and strategic.
For those who would need a quick primer on the subject, this is probably a good go-to-book, one that is actually written by an actual Russian, as opposed to a foreign analysis looking in. Conditional recommend as an introduction text.