Sunan Abu Dawood in English
Imam Abu Dawood gathered around 500,000 hadiths but only around 5,200 are present in this collection. However, it is regarded as the fourth in the strength of their six main hadith collections. He did 20 years of hard work to gather hadiths. In addition, he did several journeys to meet most of the foremost traditionalists of his time and acquired from them the most reliable hadiths, quoting sources through which it reached him.
In the books, there are discussions regarding all the problems or confusion that the people had in the earlier days of Islam. This book also has the acts of the companions of the Prophet Muhammad 
and the policies and rules that were supported by them.
In the book, Sunan Abu Dawood also mentions that if he leaves a hadith without any comment or suggestion, it must be sound and there are some particular hadith that are more authentic then the others.
There were approximately 500,000 hadith compiled by Abu Dawood out of which only 4,800 were written in his collection. The compilation of hadith and teachings of the Prophet Muhammad was carried out with extreme precautions.
There was a set of rules that were implemented to check the authenticity of the hadith. It took Abu Dawood 20 long years to collect and compile the hadith.
The finalization of the book meant that these 4,800 hadith were positive, promoting brotherhood, guiding to the right path and were not negative at all.
He also traveled a lot during the compilation to meet the source of the hadith to verify whether the hadith was reliable or not.
The content of this book entails methods of purification, Zakat, prayer, making promises, Prophets Muhammad sayings regarding Paradise, marriage, divorce, fasting and much more.
Introduction:
Sunan Abu Dawood in English translation is one of the books of Sahah Sitta, the books of hadith collected by Imam Abu Dawood. Abu Dawood compiled twenty-one books related to Hadith and preferred those Hadith which were supported by the example of the companions of Prophet Muhammad . The traditions in Sunan Abu Dawood hadith books are divided into three categories. The first category consists of those traditions that are mentioned by Bukhari and/or Muslim. The second types of traditions are those which fulfill the conditions of Bukhari or Muslim.
Significance:
Sunan Abu Dawood hadith book consists of many chapters and Hadith related to many aspects of life. The compilation of Sunan Abi Dawood is done in a different way from other books of Sitta. Sunnis regard this collection in the book as fourth in the strength of their six major books of Sahah Sitta. It took Abu Dawood 20 years to collect the Hadiths. He made a series of journeys to meet most of the traditionists of his time and acquired from them the most reliable Hadiths, quoting sources through which it reached him. He researched so many Ahadith and compiled the authentic ones in Sunan Abu Dawood. Since the author collected Hadiths which no one had ever assembled together, his Sunan has been accepted as a standard work by scholars from many parts of the Islamic world. Sunan Abu Dawood in English has been translated for the ease of people to understand the hadith. Here you can find all the chapters of the book and all the authentic hadith.