This chapter reveals that undoubtedly, in all countries covered in this book, budget planning and execution, accounting and financial reporting, and auditing and control systems are highly standardised, and countries’ accounting systems show heterogeneity in the accounting framework and basis used. In addition, the development of accounting and financial reporting focuses on exploring the benefits and opportunities of applying accruals, alongside IPSAS or EPSAS. The book also presents non-financial reporting initiatives as a new and significant challenge for public sector entities in respective countries. Editors highlight that despite the array of obstacles and the complexity of reform processes that are underway in all the countries presented in this publication, public sector accounting, reporting, and auditing and control systems are in the process of being developed on an established and internationally recognised basis. A review of country chapters reveals that these processes are evolving and ongoing, where differences between countries are more visible in the manner, dynamics, and performance in implementing the internationally recognised solutions.