readpe can show you the PE data directories with -d option, like this:

$ readpe -d putty.exe
Data directories
    Directory
        IMAGE_DIRECTORY_ENTRY_IMPORT:    0x78378 (240 bytes)
    Directory
        IMAGE_DIRECTORY_ENTRY_RESOURCE:  0x80000 (15248 bytes)
    Directory
        IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG: 0x78318 (72 bytes)
    Directory
        IMAGE_DIRECTORY_ENTRY_IAT:       0x5d000 (1292 bytes)

If the executable has an import directory you may want to see a list of imported functions with -i / --imports option:

$ readpe -i putty.exe
Imported functions
    Library
        Name:                            ADVAPI32.dll
        Functions
            Function
                Name:                            RegCloseKey
            Function
                Name:                            RegQueryValueExA
            Function
                Name:                            RegOpenKeyA
            Function
                Name:                            GetUserNameA
            Function
                Name:                            EqualSid
            Function
                Name:                            CopySid
    Library
        Name:                            COMCTL32.dll
        Functions
            Function
                Ordinal:                         14
            Function
                Ordinal:                         15
            Function
                Ordinal:                         17
            Function
                Ordinal:                         13
    Library
        Name:                            comdlg32.dll
        Functions
            Function
                Name:                            ChooseColorA
            Function
                Name:                            ChooseFontA

You can see the exported functions as well by using readpe -e / --exports option.