The work is part of a £50m PFI project between Amber Infrastructure and Shepherd Construction to redevelop the 150-year-old library that lies in Liverpool's UNESCO World Heritage site.
Austin-Smith:Lord's north west landscape group has designed an entrance featuring granite paving engraved with names, quotes and titles of famous literary works.
Landscape architect Naomi Burl said: "We have proposed a dramatic entrance sequence, which will excite visitors and leave a unique and lasting impression, enhancing the library's status as a cultural destination."
The current entrance will become a cafe with an outdoor terrace in the forecourt, which will be separated from the main approach by a granite wall featuring the library's name.
Commenting on the project, council leader Joe Anderson said: "Liverpool Central Library is one of the UK's most celebrated public libraries but it desperately needs this renovation, so the approval of this scheme is some of the best news the city will hear this year. The scale of this project is immense."
Work is set to begin in autumn and the project is scheduled for completion by the end of 2012.