关于图书馆建议的英语作文.

Dear Sir or Madam,
I am a frequent user of our library。First,I would like to express my sincere gratitude to you as the library offers great help to us。I am writing this letter in purpose of rendering some suggestions to improve the quality of your service。
Firstly,you'd better arrange an inquiry desk at the circulation hall so that students could go through the procedures more efficiently。Secondly,the light in some corner is not so bright that we cannot look through books conveniently。Lastly,the amount of books can hardly meet our demands。So,I suggest our library will be able to make efforts to collect more popular and famous books。Besides,some outdated journal should be updated in time so as to bring new fresh air to us。
Thank you for taking time reading this letter and I hope you will find the proposals practical。Your prompt attention to my advice would be highly appreciated。
Yours Sincerely,
Heng Sui