Abacus
Abacus and calculator
Marker pen and abacus
Abacus and its shadow
Calculator and papers
Calculator
Coloured pencils
Pen and ink
Calligraphy pen and computer desktop
Coins stock
Computer desktop
Paper clips
surgeon equipment cable
Organizer
Boy playing chess game
Arrangement of credit cards
Pages
Pen and paper
Spectacles on a book
Papers,bill or receipt
Reference books
Face of mannequin
Cordless phone
Enter stock
Placing magnifying glass near to a globe
USB connector
Dummy lying on a stack of books
Pencils
Computer screen
Loaded wallet
Computer mouse
education flash cards
Bird's eggs on the nest
Device
Reference book
Credit cards
Bottle and its reflection
Message in a bottle
Close-up on mannequin's face
Mannequin's face
Email
Close-up of a palmtop
Laptop
Light glowing in the dark
Lightbulb
water tap
Running water
Books and spectacles
Stopwatch
Mannequin
Rope about to snap
Pencils standing in a container
Colourful crayons
Colourful crayon
Pen and document
Naked mannequins
Chain
Pencils in a container
Laptop and thumb drive
Boy playing chess
Book and pencils
Sharpener and pencil
Hour glass
Yellow crayon
Boy as a chess game winner
Mobile phone and computer mouse
Phone receiver
Close-up on mannequin's eye
Light bulb
Hammer
Dollar sign on computer screen
Chess pieces
Knight
Chinese chess
Compass on computer keyboard
Compass
Globes
Royal flush
Chess game
Bishop
Curves of colored papers on white background
Divisions of Colored papers, close-up
Curves of colored papers on black background
Glowing abstract gas
Credit card
Globe
Think outside the box written on a speechbubble
ATM cards and accounts book
Compass and map
Dummy carrying a globe
Tin can telephone
Books and a cup of coffee
Quill pen and inkwell over blue background
Abacus on white background
Abacus sitting on a tabletop.
そろばん
Plastered globe
blank square wood block on the blackboard
MP3 player
Mobile phone
Three dices
Blue colour drink
King
Know thyself written on a speechbubble
Child's drawing, coloured pencils and accessories
Young woman enjoying tea and looking out window
Abstract coloured light patterns.
Mannequin crying
Three dices on a bee hive frame
5つ玉算盤
Abacus, X-ray
Quill pen leaving a colorful trace over cyan background
blank square wood block started with alphabet a on the blackboard
Stopwatch with movement,hypnosis based therapy
Paper plane
Opened note book and pencil on black wood
Purple ink on black background
Blue ink on white background
Idea on keyboard
financial
五つ玉のそろばん
Abacus against black background.
Wooden abacus against black background.
Hand with light bulb
Abacus on Case
帳場
雲州そろばん