The phrase "an overview of the challenges" is correct and usable in written English.
You can use it when summarizing or presenting a general understanding of various difficulties or obstacles in a specific context.
Example: "In this report, we will provide an overview of the challenges faced by the organization in the past year."
Alternatives: "a summary of the challenges" or "a review of the challenges".
Holbrooke gave an overview of the challenges that the UK and U.S. faced in the region and stressed the need to pay more critical attention to Pakistan in order for us collectively to combat terrorism and radicalization and to strengthen democratic institutions there.
This chapter provides an overview of the challenges of instrumentation and monitoring in Grid systems.
This paper provides an overview of the challenges that are faced by the processes converting lignocellulosic biomass to commodity chemicals.
This paper presents an overview of the challenges and opportunities when designing digital integrated circuits in nano-scale technologies.
The focus is on operational parameters, online calibrations and an overview of the challenges encountered to present.
We also provide an overview of the challenges and opportunities for future research associated with CO2 hydrogenation to methanol.
I am writing to provide an overview of the current challenges facing Kensington Palace as we seek to protect Prince George and Princess Charlotte from harassment and surveillance by paparazzi photographers.
The rest of the paper is organized as follows: Section 2 provides an overview of the mobility challenges in CRSN.
The aim of this paper is to give an overview of the open challenges in E-transportation and to show the fundamental role played by embedded systems.
The goal of this article is to provide an overview of the common challenges that arise in ERP research with clinical populations, including issues in experimental design and recording, analysis, and interpretation of ERPs.
