The pie charts below show the percentage of five kinds of books sold by a bookseller between 1972 and 2012.

The pie chart provides data about the

proportion

of five different kinds of

books

sold by a

bookseller

in 1972, 1992 and 2012.

Overall

, both in 1992 and 2012

biography

had the lowest

percentage

of

books

sold by a

bookseller

, meanwhile,

adult

fiction

had the highest

proportion

of

books

sold by a

bookseller

. As can be seen, in 1972 others had the highest

proportion

of

books

sold by a

bookseller

with the

rate

of 25 per

cent

,

whereas

, travel had the lowest

percentage

of

books

sold by a

bookseller

at 15 per

cent

. The proportions of

adult

fiction

, children’s

fiction

and

biography

were the same at 20 per

cent

. In 1992

adult

fiction

had the highest

rate

of

books

sold by a

bookseller

at 25 per

cent

,

while

,

biography

had the lowest

percentage

of

books

sold by a

bookseller

at 15 per

cent

. The percentages

of

Change preposition

for

show examples

travel and others were pretty similar accounting for 18 and 20 per

cent

respectively. In the year of 2012

adult

fiction

had the highest

proportion

of

books

sold by a

bookseller

with

the

Correct article usage

a

show examples

rate

of 45 per

cent

which was almost twice much than the

rate

of children’s

fiction

which

had

Verb problem

was

show examples

25 per

cent

. The rates of travel and others were quite similar accounting for 10 and 12 per

cent

respectively. In 2012

biography

had the lowest

percentage

of

books

sold by a

bookseller

with the

rate

of 8 per

cent

.